CSS cross browser compatibility

[alphavee]

Hello All!

How does one make a header like this cross browser compatible? It works in most browsers but I noticed in IE8 it renders the header weird. Here is the CSS:

.header { position: relative; padding-bottom: 0; z-index: 20; }
#banner-top { float: right; line-height: 0; margin: 20px 20px 20px 0px; }
.logo { float: left; margin: 0 50px 0 20px; }
.logo.image { line-height: 0px; }
.logo .plain-text { font-size: 20px; line-height: 30px; font-weight: bold; }
.logo #tagline { font-size: 11px; font-style: italic; }

#search-bar { float:left;
margin-top:25px;
z-index:500;}

#search-bar #home_search {
display: block;
height: 40px;
margin: 0;
padding: 4px;
position: relative;
width: 595px;}

#search-bar #home_search_input { background: none repeat scroll 0 0 transparent;
border: 1px solid #C6C6C6;
color: #666666;
display: inline-block;
font-size: 12px;
height: 40px;
line-height: 14px;
padding: 0 10px;
width: 480px; }




#search-bar #home_search_submit {
border: 1px solid #dc5653;
background: #fe5d62; /*fallback for non-CSS3 browsers*/
background: -webkit-gradient(linear, 0 0, 0 100%, from(#fe8781) to(#fe5d62)); /*old webkit*/
background: -webkit-linear-gradient(#fe8781, #fe5d62); /*new webkit*/
background: -moz-linear-gradient(#fe8781, #fe5d62); /*gecko*/
background: -ms-linear-gradient(#fe8781, #fe5d62); /*IE10*/
background: -o-linear-gradient(#fe8781, #fe5d62); /*opera 11.10+*/
background: linear-gradient(#fe8781, #fe5d62); /*future CSS3 browsers*/
-pie-background: linear-gradient(#fe8781, #fe5d62); /*PIE*/

repeat scroll 0 0 transparent;
border: 0 none !important;
color: #FFFFFF;
cursor: pointer;
display: inline-block;
font-size: 16px;
font-weight: bold;
height: 43px;
padding: 0 10px;
margin-left: 6px;
width: 80px;}


Does anybody know how to tweek this code to render the same in all browsers?

[keyboard]

Not answering the question, just a quick note. -

Please use the forum's bbcode tags to make it more readable:

for php code............
<?php /* code goes here */ ?>
for html...............
<!-- markup goes here -->.....
for js/css/other.......
code goes here................