vue-scrollbars/src/scrollbars/css/simple-inner.css

A light vue scrollbar comes from jquery.scrollbar.js

/*************** SIMPLE INNER SCROLLBAR ***************/

.scrollbar-inner > .scroll-element,
.scrollbar-inner > .scroll-element div{
    border:none;
    margin:0;
    padding:0;
    position:absolute;
    z-index:10;
}
.scrollbar-inner > .scroll-element div{
    display:block;
    height:100%;
    left:0;
    top:0;
    width:100%;
}
.scrollbar-inner > .scroll-element.scroll-x{
    bottom:2px;
    height:8px;
    left:0;
    width:100%;
}
.scrollbar-inner > .scroll-element.scroll-y{
    height:100%;
    right:2px;
    top:0;
    width:8px;
}
.scrollbar-inner > .scroll-element .scroll-element_outer{
    overflow:hidden;
}
.scrollbar-inner > .scroll-element .scroll-element_outer,
.scrollbar-inner > .scroll-element .scroll-element_track,
.scrollbar-inner > .scroll-element .scroll-bar{
    -webkit-border-radius:8px;
    -moz-border-radius:8px;
    border-radius:8px;
}
.scrollbar-inner > .scroll-element .scroll-element_track,
.scrollbar-inner > .scroll-element .scroll-bar{
    -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=40)";
    filter:alpha(opacity=40);
    opacity:0.4;
}
.scrollbar-inner > .scroll-element .scroll-element_track{ background-color:#e0e0e0; }
.scrollbar-inner > .scroll-element .scroll-bar{ background-color:#c2c2c2; }
.scrollbar-inner > .scroll-element:hover .scroll-bar{ background-color:#919191; }
.scrollbar-inner > .scroll-element.scroll-draggable .scroll-bar{ background-color:#919191; }
/* update scrollbar offset if both scrolls are visible */

.scrollbar-inner > .scroll-element.scroll-x.scroll-scrolly_visible .scroll-element_track{ left:-12px; }
.scrollbar-inner > .scroll-element.scroll-y.scroll-scrollx_visible .scroll-element_track{ top:-12px; }
.scrollbar-inner > .scroll-element.scroll-x.scroll-scrolly_visible .scroll-element_size{ left:-12px; }
.scrollbar-inner > .scroll-element.scroll-y.scroll-scrollx_visible .scroll-element_size{ top:-12px; }