CSS美化滚动条

/*定义滚动条高宽及背景*/
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
    background-color: rgba(0,0,0,.2);
 }

/*定义滚动条轨道*/
::-webkit-scrollbar-track
{
    -webkit-box-shadow:inset 0 0 6px rgba(0,0,0,0.3);
    border-radius:10px;
    background-color:#F5F5F5;
}
/*定义滑块*/
::-webkit-scrollbar-thumb
{
    border-radius:10px;
    -webkit-box-shadow:inset 0 0 6px rgba(0,0,0,.3);
    background-color: #b3b3b3;
}