Found 7 errors in external css files

Question

I am using CS3 and set up the slide show successfully, I ran the "check Browser Compatibility and I get this error,
Found 7 errors in external css files
Affects: Firefox 1.5; Internet Explorer 6.0, 7.0; Internet Explorer for Macintosh 5.2; Netscape 8.0; Opera 8.0, 9.0; Safari 2.0
line 35; <link type='text/css' href='Spry-UI-1.7/css/SpryImageSlideShow.css' rel='stylesheet'/>
Is this something to be concerned about? Is this widget only meant for CS5, is there a fix needed?

Answer 1

Here is the css
@charset "utf-8";
/* SpryImageSlideShow.css - version 0.2 - Spry Pre-Release 1.7 */
/* Copyright (c) 2010. Adobe Systems Incorporated. All rights reserved. */
.ImageSlideShow {
position: relative;
width: 480px;
height: 320px;
overflow: hidden;
border: solid 1px black;
.ImageSlideShow .ISSClip {
width: 100%;
height: 100%;
overflow: hidden;
background-color: black;
.ImageSlideShow .ISSView {
position: relative;
width: 100%;
height: 100%;
overflow: hidden;
.ImageSlideShow .ISSSlide {
position: absolute;
top: 0;
left: 0;
width: 100%;  /* Required for IE6/IE7 */
height: 100%; /* Required for IE6/IE7 */
text-align: center;
/* Fix to get images to fade properly in IE8 and change correctly in slideshow.
* This is due to the fact that absolutely positioned elements cannot have their
* opactiy altered in IE8. */
.ImageSlideShow .ISSSlide img {
filter: inherit;
.ImageSlideShow .ISSControls {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
.ImageSlideShow .ISSFirstButton, .ImageSlideShow .ISSLastButton {
display: none;
.ImageSlideShow .ISSPreviousButton, .ImageSlideShow .ISSNextButton, .ImageSlideShow .ISSPlayButton {
position: absolute;
top: 0;
display: block;
height: 100%;
opacity: 0;
filter: alpha(opacity=0);
background-repeat: no-repeat;
text-indent: -10000em;
.ImageSlideShow .ISSPreviousButton {
left: 0;
width: 30%;
background-image: url(ImageSlideShow/iss-back.gif);
background-position:  left center;
.ImageSlideShow .ISSPreviousButtonHover, .ImageSlideShow .ISSNextButtonHover, .ImageSlideShow .ISSPlayButtonHover {
opacity: 0.5;
filter: alpha(opacity=100);
.ImageSlideShow .ISSNextButton {
right: 0;
width: 30%;
background-image: url(ImageSlideShow/iss-forward.gif);
background-position:  100% 50%;
.ImageSlideShow .ISSPlayButton {
left: 30%;
width: 40%;
background-image: url(ImageSlideShow/iss-play.gif);
background-position:  center center;
/* If the slide show is busy, show the busy icon in the view. */
.ImageSlideShow.ISSBusy .ISSView {
background-image: url(ImageSlideShow/iss-busy.gif);
background-repeat: no-repeat;
background-position: center;
opacity: 0.5;
filter: alpha(opacity=100);
/* If the slide show is playing, change the play button image to "pause" */
.ImageSlideShow.ISSPlaying .ISSPlayButton {
background-image: url(ImageSlideShow/iss-pause.gif);
/* Don't show the player controls if the slide show is busy! */
.ImageSlideShow.ISSBusy .ISSPreviousButton,
.ImageSlideShow.ISSBusy .ISSNextButton,
.ImageSlideShow.ISSBusy .ISSPlayButton
display: none;