#MySignature  .content{ 
border:dashed 1px #999999;
padding:10px;
background:#F0F8FF  url(https://images.cnblogs.com/cnblogs_com/grenet/226272/o_o_o_info.png) no-repeat scroll 15px 50%;
padding-left:80px;
}

#MySignature  div.content{line-height: 25px;}