复制#blogTitle {
background:url(//images2018.cnblogs.com/blog/1210268/201803/1210268-20180310205448901-883919189.png) no-repeat;background-size:100%;/*头部图片，这里我设置的是一张透明图片，不用改*/
}

.day{background-color:#C6E2FF;background-size:100%;} /*内容的背景，可以弄成透明的图片，与上面代码一样，这里我设置为了蓝色*/

#navigator{background-color:#339A83;}  /*导航条的颜色 我这里设置的是绿色*/

body{background:url(//images.cnblogs.com/cnblogs_com/songdanlee/1492512/o_325702.jpg)  fixed; background-repeat:no-repeat;/*背景图片*/
background-size:100%;
background-attachment: fixed}
#home {
margin: 0 auto;
opacity: 0.8;
width: 65%;
min-width: 1080px;
background-color: #fff;
padding: 30px;
margin-top: 50px;
margin-bottom: 50px;
box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}

/* 定制返回顶部按键 */
#returnTop {
    background: url(//images.cnblogs.com/cnblogs_com/songdanlee/1494196/o_Cv19L8.png) no-repeat 0px top;
    width: 57px;
    height: 57px;
    overflow: hidden;
    position: fixed;
    right: 100px;
    bottom: 20px;
    cursor: pointer;
}
/*修改代码字体*/
.syntaxhighlighter a, .syntaxhighlighter div, .syntaxhighlighter code, .syntaxhighlighter table, .syntaxhighlighter table td, .syntaxhighlighter table tr, .syntaxhighlighter table tbody, .syntaxhighlighter table thead, .syntaxhighlighter table caption, .syntaxhighlighter textarea {
    font-size: 17px !important;
}