Cayce Cookbook - CSS Positioning

CSS Positioning

Absolute Centering an Element


CSS background-image Technique:


html { 
   width:100%; 
   height:100%; 
   background:url(logo.png) center center no-repeat;
}

CSS + Inline Image Technique:


img {
   position: absolute;
   top: 50%;
   left: 50%;
   width: 500px;
   height: 500px;
   margin-top: -250px; /* Half the height */
   margin-left: -250px; /* Half the width */
}

Table Technique:

CSS:


html, body, #wrapper {
   height:100%;
   width: 100%;
   margin: 0;
   padding: 0;
   border: 0;
}
#wrapper td {
   vertical-align: middle;
   text-align: center;
}

HTML:


<html>
<body>
   <table id="wrapper">
      <tr>
         <td><img src="logo.png" alt="" /></td>
      </tr>
   </table>
</body>
</html>

Resources & Examples

CSS Tricks