Background images in fluid grid layouts Dreamweaver CS6

How can I get a background image png or jpg original size 1040w by 840h to scale down in the tablet and mobile layouts in Dreamweaver CS6 fluid grid layout?

Adding one of these in your CSS should do the trick...
background-size:contain;
or
background-size:cover;
Depending on the layout of your background image, one may work better than the other.

Similar Messages

Background Images in Fluid Grid Layouts

How can I get the background image that I assign to a fluid grid layout div to fill up 100% of the grid space and at the same time size the background to the fluid boundaries of the div the same way as if I had placed an image into the div? Currently, the background image lays in the grid at the pixal size of the background picture with only the portion of the background showing commenserate withthe size of the div contents. I use CS6.
Thank you.

In your CSS Styles menu, if you double click on the layout div you are working on or the grid container, you will find that the image will show if you hit the return key. If you create a table bigger than the div tag or grid container, it will automatically resize and you be able to see your image. Thats a couple of cheat ways so you can see your image when you work and when you publish.
It just means you will have several of this code: <p> </p>
The image will only show the width and the height of layout div that you are working in.
I have been able to place one fluid grid layout div tag inside on another, although I find that if I make this a template file, the template tends to break over time. Not sure it that's because I am giving Dreamweaver a headache with multiple fluid grid layout div tags inside each other.
The most I have done: 1st level grid container, 2nd level inside grid container were layout div for spry collapse panel menus, 3rd level inside layout div for spry collapse panel menus were sub menus.
I have tried placing one image in the background of the grid container and then another image over the top in a fluid grid layout div tag. The reason why they move is because of the fixed/scroll option inside the CSS style. I found that when publishing, certain browsers shift both images either up or down. This can be a problem, especially if you create an image with a white box and try to align the second image up inside.
It probably can be done, and I spent months hand coding and playing with the file. IE8 is a problem and I have added extra code which I found online. Firefox tends to move things on Windows platform, but MAC is not as bad. Safari and Chrome tends to work better with fluid grid layouts. There is an option for the early versions of browsers so they can recognise things.
To resize everything when in tablet and mobile, I found tablet grid container/layout div tage size 80-90% and mobile to 40-50% grid container/layout div tage size.
Hope this helps

Placing a background image in fluid grid layout

I am having trouble building a fluid grid layout I am not sure why but when I shrink the layout it doesn't seem to work correctly
I need to do 2 things.
1) make the background image shrink as it is suppossd to. when you scale down the images doesn't shirink to tablet size and isn't there for the phone size (although I think I want a new image for phone with just one side of the (page image). on it so I assume I just link that in there under that section in in the css
2)It doesn't seem to want to align the writing so that it is only over the page section of the background image on each side (the rightcontent and left content boxes-ie they should look like text on a page)
also I want to take the page here when it is finished and make it a template for further pages (just changing the text) is that done the same as usual for the fluid grids?
Thank you in advance for the help
Here is the link that the site has been temp posted on for detail editing.
http://approvalsite.info/

Kind of makes sense.
I am not sure how to make the div tag layouts relative to the background image.
please advise.
also, I have been playing with it and it seems to be working better now.
But the issue I have with it now is that the image on the right side of the page keeps showing at the bottom of the page instead of on the top of the page directly next to the wording on the left.
does anyone know why?
I am sure it is just a simple coding issue.
help
approvalsite.info
CSS:
@charset "utf-8";
/* Simple fluid media
   Note: Fluid media requires that you remove the media's height and width attributes from the HTML
   http://www.alistapart.com/articles/fluid-images/
img, object, embed, video {
    max-width: 100%;
/* IE 6 does not support max-width so default to width 100% */
.ie6 img {
    width: 100%;
    Dreamweaver Fluid Grid Properties
    dw-num-cols-mobile:        5;
    dw-num-cols-tablet:        8;
    dw-num-cols-desktop:    12;
    dw-gutter-percentage:    25;
    Inspiration from "Responsive Web Design" by Ethan Marcotte
    http://www.alistapart.com/articles/responsive-web-design
    and Golden Grid System by Joni Korpi
    http://goldengridsystem.com/
/* Mobile Layout: 480px and below. */
.gridContainer {
    width: 85%;
    padding-left: 1.82%;
    padding-right: 1.82%;
    background: url(../images/DSC_0014.jpg) center fixed;
    -webkit-background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      -background-size: cover;
#LayoutDiv1 {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#header {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#menubar {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#leftcontent {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
    height:auto;
#rightcontent {
    clear: both;
    float: right;
    margin-left: 0;
    width: 100%;
    display: block;
    height:auto;
#footer {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
/* Tablet Layout: 481px to 768px. Inherits styles from: Mobile Layout. */
@media only screen and (min-width: 481px) {
.gridContainer {
    width: 90.675%;
    padding-left: 1.1625%;
    padding-right: 1.1625%;
    background: url(../images/DSC_0013.jpg) no-repeat center center fixed;
      -webkit-background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      -background-size: cover;
#LayoutDiv1 {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#header {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#menubar {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#leftcontent {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#rightcontent {
    clear: both;
    float: right;
    margin-left: 0;
    width: 100%;
    display: block;
#footer {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
/* Desktop Layout: 769px to a max of 1232px. Inherits styles from: Mobile Layout and Tablet Layout. */
@media only screen and (min-width: 769px) {
.gridContainer {
    width: 90%;
    max-width: 1232px;
    padding-left: 0.75%;
    padding-right: 0.75%;
    margin: auto;
    background: url(../images/DSC_0013.jpg) no-repeat center center fixed;
      -webkit-background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      -background-size: cover;
#LayoutDiv1 {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#header {
    clear: both;
    float: left;
    margin-left: 5%;
    width: 100%;
    display: block;
#menubar {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
#leftcontent {
    clear: both;
    float: left;
    margin-left: 15%;
    width: 30%;
    display: block;
    padding-right: 2%;
#rightcontent {
    clear: none;
    float: right;
    margin-left: 1%;
    width: 49%;
    display: block;
    margin-right: 8%;
#footer {
    clear: both;
    float: left;
    margin-left: 0;
    width: 100%;
    display: block;
HTML
<!doctype html>




<html class="">

<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Untitled Document</title>
<link href="boilerplate.css" rel="stylesheet" type="text/css">
<link href="_css/layout.css" rel="stylesheet" type="text/css">


<script src="respond.min.js"></script>

<link rel="stylesheet" href="index_files/css3menu1/style.css" type="text/css" />

</head>
<body>
<div class="gridContainer clearfix">
<div id="header"><h1>Jan Kardy's Literary Agency</h1></div>
<div id="menubar">

<ul id="css3menu1" class="topmenu">
    <li class="topfirst"><a href="../index.html" style="height:18px;line-height:18px;">Home</a></li>
    <li class="topmenu"><a href="../about_jankardys.html" style="height:18px;line-height:18px;">About Jan Kardys</a></li>
    <li class="topmenu"><a href="#" style="height:18px;line-height:18px;"><span>Resources</span></a>
    <ul>
        <li><a href="../Education_connection.html">Education Connection</a></li>
        <li><a href="../submission_guidelines.html">Submission Guidelines</a></li>
        <li><a href="#"><span>Blogs</span></a>
        <ul>
            <li><a href="http://unicornwritersconferencect.blogspot.com/">Unicorn Writers Conference</a></li>
            <li><a href="http://advancenetworkingunicorn.blogspot.com/">Advanced Networking Blogs</a></li>
        </ul></li>
        <li><a href="../first_steps_to_publishing.html">First Steps to Publishing</a></li>
        <li><a href="../library_publish_events.html">Library & Publishing Events</a></li>
        <li><a href="#">Art Gallery</a></li>
    </ul></li>
    <li class="topmenu"><a href="#" style="height:18px;line-height:18px;">Clients</a></li>
    <li class="toplast"><a href="#" style="height:18px;line-height:18px;">Contact Jan Kardys</a></li>
</ul>
<p style="display:none"><a href="http://css3menu.com/">Horizontal Menu Using CSS Css3Menu.com</a></p>

</div>
<div id="leftcontent">
    <p>Jan   Kardys, President of Black Hawk Literary Agency, has thirty years of   diversified publishing experience for nine major publishing   corporations. Black Hawk Literary Agency LLC represents a broad spectrum   of authors and illustrators, with a focus on new nonfiction and   fiction. <br />
    </p>
    <p>Jan was Director of   Contracts for Warner Books/Little, Brown & Company, Director of   Contracts at Macmillan Publishing Company, Charles Scribner's Sons, and   Contracts Director at Prentice Hall/Simon & Schuster. Ms. Kardys has   worked at Harcourt Brace Jovanovich, Doubleday, Scholastic, Lippincott   & Crowell, Publishers, St. Martin's Press, Conde Nast Publications,   and Google. Beginning a career in editorial, Jan also worked in art and   production in School publishing. Jan held various executive positions in   subsidiary rights, licensing, database design, imaging, royalty   conversions, contracts, copyrights & permissions departments.<br />
    </p>
    <p></p>
</div>
    <div id="rightcontent"><p><strong><center>Jan Kardys, Literary Agent<br />
    Black Hawk Literary Agency, LLC. <br />
    17 Church Hill Road,<br />Redding, CT 06896</center></strong></p>
    <p><strong><center>
      <p><img src="images/jankardys.jpg" alt="jankardys_headshot" /></p>
      <p>Blog: <a title="http://bookpublishingteacher.blogspot.com" onkeypress="window.open(this.href); return false;" onclick="window.open(this.href); return false;" href="http://bookpublishingteacher.blogspot.com">http: bookpublishingteacher.blogspot.com</a><br />
      </p>
      <p>Email: <a href="mailto:[email protected]" title="mailto:[email protected]">[email protected]</a> <br />
      </p>
      <p>Phone: 203-938-7405</p>
    </center></strong></p>
</div>
    <div id="footer"><h6>Webpage designed by Technomage Web Design</h6></div>
</div>
</body>
</html>

CSS Transitions Fluid Grid Layout Dreamweaver Cs6 'stops working'

I am unable to use the CSS Transisions panel at all in Fluid Grids Layout.
I open the panel but when I select the + to add a transition, the program crashes.
This is my second website, the same happened when building my first website, but I did without as I could not get a solution (about 18 months ago).
I need it on this website.
Some people in Adobe support have my files but can't seem to find a problem. I have Windows 8 on a powerful computer.
We've tested CSS Transitions on a brand new Fluid Grid Layouts page and it works.
But never for a page I have content in.
I began seeking help on this about a month ago and now I'm really being held up.
I'm disappointed and frustrated that Adobe isn't being more pro-active in finding the solution for their customer.
I can't email customer service to flag my problem, I am reliant on people who don't get back to me in a timely manner.
What can I do as this Adobe product has not been working for me and I am relying on it.
Thank you

Add a link to jQuery's Latest Library to your document <head> tags.
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
Add the jQuery function code to <script> tags in your document. I typically put them right above the closing </body> tag.
<script>
$(document).ready(function () {
    $("#one").click(function () {
        $("#one-a").toggle('slow');
    $("#two").click(function () {
        $("#two-a").toggle('slow');
    $("#three").click(function () {
        $("#three-a").toggle('slow');
</script>
</body>
As to why DW is closing you down, I don't know. That's not an expected behavior.
Without seeing your code, I'm going to guess that your CSS transition logic is incorrect or you're attempting to add transitions to the FluidGridLayout.css which is never a good idea. Always use a separate, external style sheet for your manually added content styles. Changes to either boilerplate.css or the temperamental FluidGridLayout.css files can result in problems.
Nancy O.

Dynamic Grid Layout Dreamweaver CS6

The Dynamic Grid Layout is the main reason for purchase new version of Dreamweaver .
Dynamic Grid Layout in Dreamweaver CS6 does not work nice, columns are not modify with the mouse, jumps back to the old postition. On You Tube it all looks so very easily, but in practice is all very sloppy about ...
Ask the forum, Do I have to drag a button to hold...
If I adjust the width on the left side of the div, I left a red band that set ....
Where is a make proper manual to find ....

Thanks for our suggestions, i keep trying, but Easy NO…..
Geert
Van: Nancy O. [email protected]
Verzonden: donderdag 10 mei 2012 17:11
Aan: Geertskigek
Onderwerp: Dynamic Grid Layout Dreamweaver CS6
Re: Dynamic Grid Layout Dreamweaver CS6
created by Nancy O. <http://forums.adobe.com/people/Nancy+O.> in Dreamweaver - View the full discussion <http://forums.adobe.com/message/4394107#4394107

Creating new website with Fluid Grid Layout in CS6 - CS3 Transitions problem

I am making my second website with Fluid Grid layout and as with my last one, it seems I can't use CS6 transitions. Each time I go to add a new transition, Dreamweaver stops working and shuts down. Should you be able to use the transitions function with CS6 transitions or not? In the end, what I want to do is create a behaviour where one image is swapped with another with a click (not a rollover as it won't work on mobiles, I believe).
Thank you

Add a link to jQuery's Latest Library to your document <head> tags.
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
Add the jQuery function code to <script> tags in your document. I typically put them right above the closing </body> tag.
<script>
$(document).ready(function () {
    $("#one").click(function () {
        $("#one-a").toggle('slow');
    $("#two").click(function () {
        $("#two-a").toggle('slow');
    $("#three").click(function () {
        $("#three-a").toggle('slow');
</script>
</body>
As to why DW is closing you down, I don't know. That's not an expected behavior.
Without seeing your code, I'm going to guess that your CSS transition logic is incorrect or you're attempting to add transitions to the FluidGridLayout.css which is never a good idea. Always use a separate, external style sheet for your manually added content styles. Changes to either boilerplate.css or the temperamental FluidGridLayout.css files can result in problems.
Nancy O.

Fluid Grid Layout Dreamweaver CC

Hi guys!
How is everybody? I am creating a fluid grid layout in Dreamweaver CC and when I use the visual design, I go to insert and insert either a paragraph or an h1. It always makes me create either a class or a id. Is that normal for a fluid grid layout? It will not let me insert as just h1 of p, I always have to either create an id or a class. Thanks a ton.

Hi Nancy. Thanks for getting back to me. I'm sorry I didn't get to go into more detail. I was in a phone call while I was typing. I am not so good at multitasking. With the visual view in a regular html document, I can easily insert tags like an h1 or p and am not required to create an id or class. it works just fine. However, when I use the fluid grid layout which I absolutely love, if I am using the visual view and I go to structure insert h1 or p, I am prompted to either make it a class or a div. I just find that a bit odd and am wondering why they require you to do that. I did take your advice about just going to the code view and typing out the tags. I can still go back to the visual view and create the selectors.
I just found that to be a bit odd as it doesn't prompt in a basic document.

Unable to edit elements in Fluid Grid Layout - Dreamweaver CC

Hello. I have an issue whereby the elements inserted in to a Fluid Grid Layout designed webpage become 'locked' (??) I can no longer edit them and when they are clicked on I just get a blue border. No handles, eye, delete button etc..
I cannot find any pattern on why this is happening and seems to be random. Although I am happy to accept I am doing something wrong..
Any ideas?

aytonwest
Are you removing/modifying any of the comments in the related CSS file (custom styles file and not the ones provided by boilerplate/JQuery/etc)
DW uses some comments to identify the page as a FG page. If you happen to remove/modify any of that, DW will stop recognizing it as a FG page.
The comment block would look similar to:
                Dreamweaver Fluid Grid Properties
                dw-num-cols-mobile:                    7;
                dw-num-cols-tablet:                      11;
                dw-num-cols-desktop: 11;
                dw-gutter-percentage: 67;
                Inspiration from "Responsive Web Design" by Ethan Marcotte
                http://www.alistapart.com/articles/responsive-web-design
                and Golden Grid System by Joni Korpi
                http://goldengridsystem.com/

Help centering background video in fluid grid layout inside div

Hopefully this all makes sense. I am trying to center the background video (the animation on the website towards the bottom)... I have tried all sorts of things to try and center this. If it can't be done, it can't be done. The banner on top works as should. If all else fails I will just not use a fluid grid page and that will be that. I self taught myself Adobe After Effects to make that animation (took me a month and 1/2) and I have self taught myself Dreamweaver.. coming from Frontpage and Expression Web.
Here is the website (thank you in advance for your input):
http://a1customcomputers.com/Web%20Development/A1CC/Main.html
I just tested it and it's not playing how it should.. I'll figure that out later but where it says "Enter", that is what I need centered. Thanks
My html so far:
<!doctype html>




<html class="">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Untitled Document</title>
<link href="boilerplate.css" rel="stylesheet"/>
<link href="assets/style.css" rel="stylesheet"/>
<script src="respond.min.js"></script>
<script type="text/javascript" src="assets/jquery-1.5.1.js"></script>
<script type="text/javascript" src="jquery.videoBG.js"></script>
<script type="text/javascript" src="assets/script.js"></script>
</head>
<body>
<div class="gridContainer clearfix">
<div id="div1" class="fluid">
<div align="center"><img src="A1_Banner.jpg" /></div>
</div>
<p> </p>
<p> </p>
<div id="div2" class="fluid"></div>
</div>
</body>
</html>
my style.css so far:
@charset "utf-8";
/* Simple fluid media
   Note: Fluid media requires that you remove the media's height and width attributes from the HTML
   http://www.alistapart.com/articles/fluid-images/
img, object, embed, video {
max-width: 90%;
/* IE 6 does not support max-width so default to width 100% */
.ie6 img {
width:100%;
Dreamweaver Fluid Grid Properties
dw-num-cols-mobile: 5;
dw-num-cols-tablet: 8;
dw-num-cols-desktop: 12;
dw-gutter-percentage: 15;
Inspiration from "Responsive Web Design" by Ethan Marcotte
http://www.alistapart.com/articles/responsive-web-design
and Golden Grid System by Joni Korpi
http://goldengridsystem.com/
.fluid {
clear: none;
width: 400px;
float: left;
display: block;
padding-left: auto;
padding-right: auto;
.fluidList {
    list-style:none;
    list-style-image:none;
    margin:0;
    padding:0;
/* Mobile Layout: 480px and below. */
.gridContainer {
width: 100%;
clear: none;
float: none;
height: 100%;
margin-top: 20px;
padding-left: 0.7851px;
padding-right: .7851px;
#div1 {
width: 100%;
#div2 {
width: 400px;
height: 400px;
text-align: left;
margin-left: auto;
margin-right: auto;
.zeroMargin_mobile {
margin-left: 0;
.hide_mobile {
display: none;
/* Tablet Layout: 481px to 768px. Inherits styles from: Mobile Layout. */
@media only screen and (min-width: 481px) {
.gridContainer {
width: 100%;
padding-left: 0.7581%;
padding-right: 0.7581%;
clear: none;
float: none;
margin-top: 20px;
height: 100%;
#div1 {
width: 100%;
#div2 {
width: 400px;
height: 400px;
text-align: left;
margin-left: auto;
margin-right: auto;
.hide_tablet {
display: none;
.zeroMargin_tablet {
margin-left: 0;
/* Desktop Layout: 769px to a max of 1232px. Inherits styles from: Mobile Layout and Tablet Layout. */
@media only screen and (min-width: 769px) {
.gridContainer {
width: 100%;
margin-top: 20px;
clear: none;
float: none;
padding-left: 0.7581%;
padding-right: 0.7581%;
height: 100%;
#div1 {
width: 100%;
margin-bottom: 13%;
#div2 {
width: 400px;
margin: 0 auto;
.zeroMargin_desktop {
margin-left: 0;
.hide_desktop {
display: none;
/* DEMOS */
#div2 {
width: 400px;
margin: 0 auto;

Not trying to argue with you and I know you are only trying to help and I know that you know ALOT more about this than I do.. you do... I don't know if background was the correct "place" to call it.. but nevertheless.. what I beleive it is, is in the background.. and maybe that is part of the problem. It is supposed to be called from a JQuery plugin, and where I have it now is in a "div [div2]" in the "gridcontainer". It was working and my latest attempts it was working great.. but wasn't centered. But I've changed a bunch of code around lately and so that is why it is not working right now... The "Enter" that you see on the link I provided is the "poster". When I get a chance I will work on it and get the animation working again.. or back to normal.. just not centered. At first I was thinking "centered vertically".. and so for like a week, maybe longer.. everthing that I was searching for and trying was for "vertically center a div".. then it hit me.. you jacka$$.. you want to horizontally center it... Haha! Again, thank you for your input.

Sliding background banner in fluid grid layout

Hello all...
Hope someone can help me. Kind of new to programming and dream weavers fluid grids. But I've started working on a website and encounted a problem.
How do you implement a sliding background banner in the fluid grid design?
PS: My design looks like this and I plan to use a javascript slider for the banner (don't mind the danish language) :

the logo, menu, headlines and slider navigation is placed on top of the slider.
This is going to fail for several reasons.
#1 FGLayouts resize as do the foreground images inside them. However, menus & headlines don't resize. They stay the same size regardless of viewport unless you invoke your own special CSS media queries to change them.
#2 Background images don't re-size to layout.
#3 To have a slider appear behind your logo, menu and headines, you'll need to layer elements with absolute positioning. And as we all know from multiple discussions on this forum, absolute positioning doesn't work well in Responsive layouts because eventually everything becomes a jumbled mess.
The best advice, keep your slider separate from your site menu and headlines. You'll have fewer problems that way.
Nancy O.

Re-sizing images in fluid grid layout (responsive site design)

I have an image that I placed in dreamweaver cc. It scales great in all deives and browsers. The thing is I want to make some small ajustments with its height in the differant devices and when I do so in one device it screws everything up in all the others terribly.

Mr.adobe2341 wrote:
I have an image that I placed in dreamweaver cc. It scales great in all deives and browsers. The thing is I want to make some small ajustments with its height in the differant devices and when I do so in one device it screws everything up in all the others terribly.
Throw us some code.......preferable a link url to what you have so far.

Missing handles fluid grid layout dreamweaver cc

I have seen the other postings to correct the problem with resolving the missing handles with a div in dreamweaver cc BUT it is not working when I try it.
very frustrating... when you set up the initial design the boxes are there to resize, move up, hide divs BUT once you save the design and return to the page, they are missing.
HOw are you to design a web site in one sitting.. bit ridiculous!
Please help with this issue!
Donna

Did you manually edit any of the FluidGrid CSS code? It's very temperamental and prone to failures if you tamper with it. I always advise people to use a separate external style sheet for content styles.
Nancy O.

How to adjust height of header image in fluid grid layout

I appreiate the help people are trying to give me but I need help on what "to" do not on what "not" to do. I'm tryinh to tweek the height of my header image in the indivisual device views without screwing each other up.Meaning when I adjust the height in smartphone view I dont want it to affect tablet view, or when I adjust the height in desktop view it doesn't affect smartphone view, and so on and so on. The width works fine (right now at least) because its simple 100% of screen so it scales great right now. Its the height I cant get!!! I cant adjust it. Each device needs a little tweek beause of design issues. PLease help
ps no tutorial i've seen helps with the issues i'm going through, none. And I've had people offer suggestions so I done wasting days looking at these things. I just need the anwser a what to do.

If you alter the height in the applicable css media query only that device will observe the specified height.
What is it you are actually trying to do. Simple example below:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
<style>
#header {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
img {
    max-width: 100%;
    height: auto;
@media screen and (max-width: 480px) {
.changeHeight {
height: 500px;
</style>
</head>
<body>
<div id="header">
<img src="yourImage.jpg" class="changeHeight"></div>
</body>
</html>
If you want to target screens with a max-width of 480px you would write a css media query:
@media screen and (max-width: 480px) {
.changeHeight {
height: 500px;
However not sure why you would want to change heights as it will distort the image.
You could server up an alternative sized image for desktop, tablet and smartpone:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
<style>
#header {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
img {
    max-width: 100%;
    height: auto;
.tablet {
display: none;
.smartPhone {
display: none;
@media screen and (max-width: 480px) {
.deskTop {
display: none;
.tablet {
display: none;
.smartPhone {
display: block;
</style>
</head>
<body>
<div id="header">
<img src="deskTop.jpg" class="deskTop">
<img src="tablet.jpg" class="tablet">
<img src="smartPhone.jpg" class="smartPhone">
</div>
</body>
</html>

Problem in desktop layout in "Building fluid grid layouts in Adobe Dreamweaver CS6"

In this tutorial you taught to design a responsive site ....but the Terrestrial Nursery completed page doesnot work well in Internet Explorer in 14 inches Square Monitor........that you have placed the three columns in the same alignment...but while viewing those three columns comes down one by one..........but works well in wide screen......is there any problem in the size of the monitor..........

Here is the link to the tutorial......
http://www.adobe.com/inspire/2012/08/fluid-grid-layouts-dreamweaver-cs6.html
It doesnot work well in Internet Explorer 8....What to do for the responsive site to work well in all the older versions of IE....

Fluid grid layouts do not work in IE 7/8

Hello,
I just created a simple fluid grid layout with Dreamweaver CS6, but there is a problem in Internet Explorer.
IE 9 shows it right.
When I start IE 9, I press F12 to get to the developer panel. When I switch to IE 7 / 8, the layout crashes. There are no background colors and text styles anymore.
Later I will upload some screenshots.
All other browser work fine.
Where is the problem here?

When I resize layout in Firefox, the background colors disappear in mobile portrait, mobile landscape, and tablet portrait.
Reason: You added styles to your FluidGrid Desktop but not mobile & tablet.
In order for FluidGridLayouts to work, you must build your mobile styles first because everything else is based on that.
I find it's much safer to use a separate style sheet for content. When you start adding stuff to FluidGridLayout.css, things can get screwed up in a hurry.
CS6 Fluid Grid Layouts (6 min video)
http://tv.adobe.com/watch/digital-design-cs6/creating-adaptive-designs-using-fluid-grid-la youts-in-dreamweaver-cs6/
CS6 Fluid Grid layouts (17 min video)
http://tv.adobe.com/watch/learn-dreamweaver-cs6/using-fluid-grid-layouts/
Step-by-Step tutorial -- Building Fluid Grid Layouts in DW CS6
http://www.adobe.com/inspire/2012/08/fluid-grid-layouts-dreamweaver-cs6.html
Nancy O.

Background images in fluid grid layouts Dreamweaver CS6

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