.copy_code{
    z-index: 2;
    transition: all .3s;
    display: none;
    position: absolute;
    color: #ddd;
    background-color: transparent;
    right: 5px;
    top: 9px;
    font-size: 12px;
    line-height: 12px;
    padding: 3px 5px;
    border: 1px solid;
    border-radius: 4px;
}
pre code ul {
    list-style: decimal;
    margin: 0px 0px 0 40px !important;
    padding: 0px;
    font-size: 14px;
  	color: #F5F5F5;
    border-left: 1px solid  #696969;
}
pre code ul li {
    list-style: decimal;
	padding: 5px!important;
	margin: 0 !important;
    font-family: SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;
	line-height: 14px;
	word-break: break-all;
	word-wrap: break-word;
}
pre code ul li:nth-of-type(even) {
	color: inherit;
  
}

/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
pre code::-webkit-scrollbar{
    width: 5px;
    height: 8px;
    background-color: rgba(255,255,255,0);
}
 
/*定义滚动条轨道 内阴影+圆角*/
pre code::-webkit-scrollbar-track{
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
    border-radius: 10px;
    background-color: rgba(255,255,255,0);
}
 
/*定义滑块 内阴影+圆角*/
pre code::-webkit-scrollbar-thumb{
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3);
    background-color: #555;
}


pre code::-webkit-scrollbar-corner {
	/* background: transparent!important; */
}

pre code:-webkit-scrollbar {
	/* width: 8px!important; */
	height: 8px!important;
}

pre code::-webkit-scrollbar-thumb {
	border-radius: 5px!important;
	background-color: #777!important;
}

pre code::-webkit-scrollbar-track-piece {
	background: #21252a!important
}

pre code::-webkit-scrollbar-thumb:hover {
	background-color: #888!important
}

pre code::-webkit-scrollbar-thumb:active {
	background-color: #999!important
}

pre,article pre{
    max-height: calc(100vh - 250px);
    overflow: auto;
    padding: 0;
    margin-left: 2px;
    background: #161616;
    min-height: 100%;    position: relative;    padding-top: 38px;    overflow-y: hidden;
}

.btn-copy-code {
	transition:all .3s;
	opacity:0;
	position:absolute;
	color:#ddd;
	background-color:transparent;
	right:6px;
	top:8px;
	font-size:12px;
	line-height:12px;
	padding:3px 5px;
	border:1px solid;
	border-radius:4px
}
.btn-copy-code:hover {
	color:#fff
}
pre:hover .btn-copy-code {
	opacity:1
}