mam taką stronkę
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-2" />
<title>Dynamic Drive: CSS Fixed Layout #3.1- (Fixed-Fixed-Fixed)
</title>
href="ssb1.css"
type="text/css" />
<div id="contentwrapper"> <div class="innertube"><b>Content Column:
<em>Fixed
</em></b> 1
</div>
<div class="innertube"><b>Left Column:
<em>180px
</em></b> 2 wwwwwwwwwwwwwww w f sg sdfg sdg sd gs gsd g sdg sd sd gsd sd asdf sdg sgfd gsd sdg sd gsdg sd gsd gsd
</div>
<div class="innertube"><b>Right Column:
<em>190px
</em></b> 3
</div>
<div id="footer"><a href="http://www.dynamicdrive.com/style/">cośtam coś
</a></div>
i do tego css
body{
margin:0;
padding:0;
line-height: 1.5em;
}
b{font-size: 110%;}
em{color: red;}
#maincontainer{
width: 840px; /*Width of main container*/
margin: 0 auto; /*Center container on page*/
}
#topsection{
background: #EAEAEA;
height: 90px; /*Height of top section*/
}
#topsection h1{
margin: 0;
padding-top: 15px;
}
#contentwrapper{
float: left;
width: 100%;
}
#contentcolumn{
margin: 0 190px 0 180px; /*Margins for content column. Should be "0 RightColumnWidth 0 LeftColumnWidth*/
}
#leftcolumn{
float: left;
width: 180px; /*Width of left column in pixel*/
margin-left: -840px; /*Set margin to that of -(MainContainerWidth)*/
background: #C8FC98;
}
#rightcolumn{
float: left;
width: 190px; /*Width of right column*/
margin-left: -190px; /*Set left margin to -(RightColumnWidth)*/
background: #FDE95E;
}
#footer{
clear: left;
width: 100%;
background: black;
color: #FFF;
text-align: center;
padding: 4px 0;
}
#footer a{
color: #FFFF80;
}
.innertube{
margin: 10px; /*Margins for inner DIV inside each column (to provide padding)*/
margin-top: 0;
}
jak przerobić tego css-a żeby teraz na na stronie mam zrobione ze najpierw twozy sie środek porem lewa i prawa strona jak to przerobić żeby pierw tworzyć lewę i prawą stronę a na komiec środek?