<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">div.main { background-image: linear-gradient(#000, #fff) }
.collapser::before,
.collapser::-moz-before,
.collapser::-webkit-before {
    content: "Â»";
    font-size: 1.2em;
    margin-right: .2em;
    -moz-transition-property: -moz-transform;
    -moz-transition-duration: .2s;
    -moz-transform-origin: center 60%;
}
.collapser.expanded::before,
.collapser.expanded::-moz-before,
.collapser.expanded::-webkit-before { -moz-transform: rotate(90deg) }
.collapser + * {
    height: 0;
    overflow: hidden;
    -moz-transition-property: height;
    -moz-transition-duration: .3s;
}
.collapser.expanded + * { height: auto }
</pre></body></html>