html - Making a position:static (or :relative) element span the width of the page -


i have top "tray" advertisement. can slide away beyond border of page, javascript script. "divider" below holds close icon, , cosmetic, gets fixed when page scrolled past point. (this prevent browser's theme screwing page design).

my problem before divider gets position:fixed javascript, needs either position:relative or position:static, absolute positioning take out of flow of page. when set position:static , width:100% there margin shows background image through it. want cover entire top of page. i've searched solution, can't find on how remove border. easier explain using jsfiddle: @ top there part red border, , directly below divider fixes page when scroll down. cannot figure out how red border , divider (before becomes fixed) span width of page.

here's offending piece of html:

    <div class = "adtray">      <div class = "ad"></div>     <div class = "ad"></div> </div>  <div  class="topborder"></div>

and css:

.adtray{     border: 1px solid red;     height:100px;     width:100%; }  #topborderscrolled{     position:fixed;     z-index:100; } .topborder{     right:0;     left:0;     top:0;     background: rgb(68,68,68); /* old browsers */     background: -moz-linear-gradient(top,  rgba(68,68,68,1) 0%, rgba(51,51,51,1) 50%, rgba(38,38,38,1) 50%, rgba(20,20,20,1) 100%); /* ff3.6+ */     background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(68,68,68,1)), color-stop(50%,rgba(51,51,51,1)), color-stop(50%,rgba(38,38,38,1)), color-stop(100%,rgba(20,20,20,1))); /* chrome,safari4+ */     background: -webkit-linear-gradient(top,  rgba(68,68,68,1) 0%,rgba(51,51,51,1) 50%,rgba(38,38,38,1) 50%,rgba(20,20,20,1) 100%); /* chrome10+,safari5.1+ */     background: -o-linear-gradient(top,  rgba(68,68,68,1) 0%,rgba(51,51,51,1) 50%,rgba(38,38,38,1) 50%,rgba(20,20,20,1) 100%); /* opera 11.10+ */     background: -ms-linear-gradient(top,  rgba(68,68,68,1) 0%,rgba(51,51,51,1) 50%,rgba(38,38,38,1) 50%,rgba(20,20,20,1) 100%); /* ie10+ */     background: linear-gradient(to bottom,  rgba(68,68,68,1) 0%,rgba(51,51,51,1) 50%,rgba(38,38,38,1) 50%,rgba(20,20,20,1) 100%); /* w3c */     filter: progid:dximagetransform.microsoft.gradient( startcolorstr='#444444', endcolorstr='#141414',gradienttype=0 ); /* ie6-9 */     width:100%;     height:15px;      border:1px solid #111111; }

i hope made sense.

use reset.css normalise styles, read 1 of reset csss available here: http://meyerweb.com/eric/tools/css/reset/.

another quick way set margin on body zero, eg. body {margin: 0} recommended way use reset.css.


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