qt5base-lts/examples/webkit/webkit-guide/css/css3_backgrounds.css

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** This file is part of the Qt WebKit module of the Qt Toolkit.
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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;
}