.frame::-webkit-scrollbar {
    -webkit-appearance: none;
}

    .frame::-webkit-scrollbar:vertical {
        width: 11px;
    }

    .frame::-webkit-scrollbar:horizontal {
        height: 11px;
    }

.frame::-webkit-scrollbar-thumb {
    border-radius: 8px;
    border: 2px solid white; /* should match background, can't be transparent */
    background-color: rgba(0, 0, 0, .5);
}

.frame::-webkit-scrollbar-track {
    background-color: #fff;
    border-radius: 8px;
}