body{/*背景图片设置*/
     background-image: url("https://images.cnblogs.com/cnblogs_com/codeqiao/1133080/o_weizhuang.jpg");
     background-repeat: repeat;
     background-attachment: fixed;
     background-size:cover;
 }

#blogTitle {/*设置默认blogTitle隐藏*/
display:none;
}

.catListTitle {/*l修改模版每个小框框的背景色*/
background:#25001b;
}