滚动条

::-webkit-scrollbar {
width: 8px;
}
::-webkit-scrollbar-button {
width: 8px;
height:5px;
}
::-webkit-scrollbar-track {
background:#eee;
border: thin solid lightgray;
box-shadow: 0px 0px 3px #dfdfdf inset;
border-radius:10px;
}
::-webkit-scrollbar-thumb {
background:#999;
border: thin solid gray;
border-radius:10px;
}
::-webkit-scrollbar-thumb:hover {
background:#7d7d7d;
}