pre {
    background: #000 !important;
    border-left: 8px solid #ddd !important;
}

pre::-webkit-scrollbar {
    height:6px;
}
pre::-webkit-scrollbar-track {
    -webkit-box-shadow: inset005pxrgba(0,0,0,0.2);
    border-radius:0;
    background:#848080;
}

pre::-webkit-scrollbar-thumb {
    border-radius:5px;
    -webkit-box-shadow: inset005pxrgba(0,0,0,0.2);
    background:#dc9e9e;
}