Ghost/ghost/admin/assets/sass/lib/nanoscroller.scss

.nano {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.nano > .nano-content {
    position: absolute;
    overflow: scroll;
    overflow-x: hidden;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}
.nano > .nano-content:focus {
    outline: thin dotted;
}
.nano > .nano-content::-webkit-scrollbar {
    display: none;
}
.has-scrollbar > .nano-content::-webkit-scrollbar {
    display: block;
}
.nano > .nano-pane {
    background: transparent;
    position: absolute;
    width: 7px;
    right: 2px;
    top: 2px;
    bottom: 2px;
    opacity: 0;
    transition: 0.45s;
    border-radius: 10px;
}
.nano > .nano-pane > .nano-slider {
    background: #444;
    background: rgba(0,0,0,0.35);
    position: relative;
    border-radius: 10px;
}
.nano.nanoShowScrollBar > .nano-pane,
.nano-pane.active,
.nano-pane.flashed {
    opacity: 1;
}
.nano > .nano-pane:hover,
.nano > .nano-pane.active {
    width: 10px;
    background: rgba(0, 0, 0, .15);
    opacity: 1;
    transition: 0.15s;
}