/* 定制公告栏时钟位置 */
#clockdiv {
    /* left, center, right */
    text-align: center;
}

/* 头像位置 */
#newsSideBar{text-align: center;}
#newsSideBar .headImage {
    padding: auto;
}
#newsSideBar .headImage img {
    border: 3px solid #2586d7;
    border-radius: 50%;
    width: 150px;
    margin: auto;
    display: block;
}

/* 定制博客背景图片，url里面是你的图片位置信息 */
body { 
     font-size: 18px;
     font-family: ' Arial, Helvetica, sans-serif';
     background-color: #efefef;
     background-image: url(https://images.cnblogs.com/cnblogs_com/blogs/793522/galleries/2330390/o_230727084848_%E5%A3%81%E7%BA%B8.jpg); 
     opacity:0.9 ;
     background-repeat: no-repeat; 
     background-attachment: fixed; 
     background-position: center 0; 
     background-size: cover; 
    padding-top:0px;
  }

  #leftmenu h3 {
  color: #b4acac;
  font-size: 18px;
  margin: 5;
  padding: 4px;
  border-bottom: 1px solid #bbb;｝