.scrollable {
    position: relative;
}
.scrollable:focus {
    outline: 0;
}
.scrollable .viewport {
    position: relative;
    overflow: hidden;
}
.scrollable .viewport .overview {
    position: absolute;
}
.scrollable .scroll-bar {
    display: none;
}
.scrollable .scroll-bar.vertical {
    position: absolute;
    right: 0;
    height: 100%;
}
.scrollable .scroll-bar.horizontal {
    position: relative;
    width: 100%;
}
.scrollable .scroll-bar .thumb {
    position: absolute;
}
.scrollable .scroll-bar.vertical .thumb {
    width: 100%;
    min-height: 10px;
}
.scrollable .scroll-bar.horizontal .thumb {
    height: 100%;
    min-width: 10px;
    left: 0;
}
.not-selectable {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
.container {
    float: left;
    width: 400px;
    height: 445px;
}
.scrollable.container {
    padding-right: 10px;
}
.scrollable.container .scroll-bar.vertical {
    width: 4px;
}
.scrollable.container .scroll-bar.horizontal {
    height: 4px;
}
.scrollable.container .scroll-bar .thumb {
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    border-radius: 2px;
    background-color: #808080;
    opacity: 0;
    filter: alpha(opacity=0);
    -webkit-transition: opacity 0.3s linear;     /* Safari 3.1-6.0, Chrome 4.0-25.x */
    -moz-transition: opacity 0.3s linear;        /* Firefox 4.0-15.x */
    -ms-transition: opacity 0.3s linear;         /* Internet Explorer 10.0 */
    -o-transition: opacity 0.3s linear;          /* Opera 10.5-12.0 */
    transition: opacity 0.3s linear;
}
.scrollable.container .scroll-bar:hover .thumb {
    cursor: pointer;
}
#imprint:hover .thumb {
    opacity: 0.6;
    filter: alpha(opacity=60);
}