body {text-align:center;width:80%;margin:0 auto;text-align:center;}
div {text-align:left;}
div#wrapper{float:left;width:100%;}
div#content{margin: 0 250px 0 0;}
div#right{float:left;width:250px;margin-left:-250px}
div#footer, div #prefooter {clear:left;width:100%}

/*limitem pàgina a 780px*/
div#container {width:100%;min-width:780px;#width:780px;}
/*div#container {min-width:780px;#width:100%;border-right:600px solid red;}
div#wrapper {margin-right:-600px;float:none;}*/

/*caixes de contingut*/
#prefooter, #footer 	{clear:both;overflow:hidden;}
#prefooter div, #footer div {float:left;margin-bottom: -1000px; padding-bottom: 1000px;} /*sliding faux columns*/

.dos {width:50%;#width:49.9%;}
.tres {width:33.3%;}
.quatre {width:25%;#width:24.9%;}