Css validations help

Question

Hi
I'm looking for some help or more to the point for someone to give me the correct code so it will validate.  The url is  graphicinfluence.co.uk and I have the falling errors and I just can't seam to fix it without completely messing everything up.
Thanks for your time. 
4 errors and 4 warnnings
1471
.btn
  attempt to find a semi-colon before the property name. add it 
1471
.btn
  Property progid doesn't exist :    DXImageTransform    
1471
.btn
  Parse Error    DXImageTransform.Microsoft.gradient(startColorstr='#f3813f', endColorstr='#f36e21');    
1499
  Parse Error  shadow:1px 1px 0px #ce8e28; } .btn:hover]

Answer 1

as soon as I add the below css it is then not valid
/**Start Tagline BTN**/
.btn {
-moz-box-shadow:inset 0px 1px 0px 0px #fceaca;
-webkit-box-shadow:inset 0px 1px 0px 0px #fceaca;
box-shadow:inset 0px 1px 0px 0px #fceaca;
background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #f3813f), color-stop(1, #f36e21) );
background:-moz-linear-gradient( center top, #f3813f 5%, #f36e21 100% );
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f3813f', endColorstr='#f36e21');
background-color:#f3813f;
-webkit-border-top-left-radius:6px;
-moz-border-radius-topleft:6px;
border-top-left-radius:6px;
-webkit-border-top-right-radius:6px;
-moz-border-radius-topright:6px;
border-top-right-radius:6px;
-webkit-border-bottom-right-radius:6px;
-moz-border-radius-bottomright:6px;
border-bottom-right-radius:6px;
-webkit-border-bottom-left-radius:6px;
-moz-border-radius-bottomleft:6px;
border-bottom-left-radius:6px;
text-indent:0;
display:inline-block;
color:#ffffff;
font-family:Arial;
font-size:15px;
font-weight:bold;
font-style:normal;
height:40px;
line-height:40px;
width:114px;
text-decoration:none;
text-align:center;
text-shadow:1px 1px 0px #ce8e28;
.btn:hover {
background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #f36e21), color-stop(1, #f3813f) );
background:-moz-linear-gradient( center top, #f36e21 5%, #f3813f 100% );
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f36e21', endColorstr='#f3813f');
background-color:#f36e21;
}.btn:active {
position:relative;
top:1px;