.first_class_ul { list-style: none; margin-left: 0; padding-left: 1.2em; text-indent: -1.2em; } 
.first_class_ul li:before { content: "§"; display: block; float: left; width: 1.2em; }

.second_class_ul { list-style: none; margin-left: 0; padding-left: 1.2em; text-indent: -1.2em; } 
.second_class_ul li:before { content: "┊┈"; display: block; float: left; width: 1.2em; }

.third_class_ul { list-style: none; margin-left: 0; padding-left: 1.2em; text-indent: -1.2em; }
.third_class_ul li:before { content: "↳"; display: block; float: left; width: 1.2em; }
span{white-space:normal}
.cnblogs_code pre span{ white-space:pre }
#header{width:1200px!important;}
#main{width:1200px!important;}
#sideBar{width:190px!important;}
#mainContent{width:980px!important;}