<style type="text/css">
 .Abstract {
padding: 15px;
border: dotted 2px #999;
color: #999;
font-family: 'Microsoft Yahei';
border-radius: 4px;
}
.First {
    margin: 10px 0;
    font-family: 'Microsoft Yahei';
    text-align: left;
    padding: 6px 20px;
    color: #fff;
    background: #55895B;
    font-size: 20px;
    border-radius: 4px;
    clear: both;
}
.Second {
    margin: 10px 0;
    font-family: 'Microsoft Yahei';
    padding: 6px 20px;
    background: #93C8A2;
    color: white;
    font-size: 18px;
    border-radius: 4px;
    clear: both;
}
.Third {
    margin: 10px 0;
    padding: 6px 20px;
    font-family: 'Microsoft Yahei';
    margin: 15px 0;
    font-size: 16px;
    color: black;
    background: #C6EFD2;
    border-radius: 4px;
    clear: both;
}
.note {
    margin: 10px 0;
    padding: 15px 20px 15px 60px;
    background: #FCFAA9 url('https://images.cnblogs.com/cnblogs_com/libaoheng/305804/o_yellow-pin.png') no-repeat 20px 0;
    font-size: 15px;
    font-family: 'Microsoft Yahei';
    box-shadow: 0 0 8px #aaa;
    clear: both;
}
.demo {
    text-align: left;
    padding: 6px 20px;
    overflow: auto;
    border-radius: 4px;
    background: orange;
    color: #fff;
    font-size: 16px;
    clear: both;
}
.cnblogs_Highlighter {
    border: solid 1px #ccc;
    clear: both;
}
.cnblogs_code {
    background: #EFFFF4;
    border: solid 0px #939393;
    font-size: 14px;
    clear: both;
    padding: 10px 20px;
}
.cnblogs_code pre {
    font-size: 14px;
}
.cnblogs_code span {
    font-family: Courier New;
    font-size: 14px;
}

</style>