::-webkit-scrollbar-track-piece {
    background-color:  #fff;
    -webkit-border-radius: 4px;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-thumb {
    height: 50px;
    background-color: #BFBFBF;
    -webkit-border-radius: 4px;
    outline: none;
    outline-offset: 0px;
    border: none;
}

::-webkit-scrollbar-thumb:hover {
    height: 50px;
    background-color: #BFBFBF;
    -webkit-border-radius: 4px;
}

::-webkit-scrollbar-corner {
    /*background-color: rgba(0, 0, 0, 0);*/
    background-color: #fff;
}

/* iframe 滚动条样式*/
iframe::-webkit-scrollbar-track-piece {
    background-color:  #fff;
    -webkit-border-radius: 4px;
}

iframe::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

iframe::-webkit-scrollbar-thumb {
    height: 50px;
    background-color: #BFBFBF;
    -webkit-border-radius: 4px;
    outline: none;
    outline-offset: 0px;
    border: none;
}

iframe::-webkit-scrollbar-thumb:hover {
    height: 50px;
    background-color: #BFBFBF;
    -webkit-border-radius: 4px;
}

iframe::-webkit-scrollbar-corner {
    /*background-color: rgba(0, 0, 0, 0);*/
    background-color: #fff;
}