css3_backgrounds.css Example File

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 ** Contact: http://www.qt-project.org/legal
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 ** This file is part of the Qt WebKit module of the Qt Toolkit.
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 ** You may use this file under the terms of the BSD license as follows:
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 body {
     font-family             : sans-serif;
     background              : #aaaaaa;
 }

 h1,h2,h3,h4 {
     background              : #ffffff;
     text-align              : center;
     margin                  : 0.5em;
     padding                 : 0.5em;
     border-radius           : 0.5em;
 }

 .accordion {
     margin                  : 0.5em 0.5em 6em 0.5em;
     border-radius           : 0.5em;
     border                  : thin solid #aaa;
     background              : #ffffff;
     overflow                : hidden;
     padding                 : 1.0em 0.5em 1.0em 0.5em;

 }

 .accordion > dt {
     cursor                  : pointer;
     border-top              : thin solid #aaa;
     border-radius           : 0.5em;
     padding                 : 0.5em 0.5em 0.5em 2.5em;
     font-weight             : bold;
     background-size         : auto;
     background-image        : url(../img/icon_head-collapsed_x13.png);
     background-repeat       : no-repeat;
     background-position     : 12px 12px;
 }

 .accordion > dt:first-of-type {
     border-top              : none;
 }

 .accordion > dt.selected {
     background-image        : url(../img/icon_head-expanded_x13.png)    , url(../img/gradient.jpg);
     background-repeat       : no-repeat                , repeat-x;
     background-position     : 12px 12px                , 0 0;
     margin-bottom           : 0em;
 }

 dt + dd {
     max-height              : 0%;
     margin                  : 0;
     opacity                 : 0;
     padding                 : 0.5em;
     overflow-y              : hidden;
     max-height              : 0;
     -webkit-transform       : scaleY(0);
     -webkit-transition      : all 0.5s linear;
 }

 dt.selected + dd {
     -webkit-transform           : scaleY(1);
     -webkit-transform-origin    : center;
     max-height                  : 1000px;
     -webkit-transition          : all 0.5s linear;
     opacity                     : 1;
 }