#MySignature{
  background-image: url(https://files.cnblogs.com/files/zhly2711/image4.bmp?t=1685268943&download=true);
  background-size: cover; /* 图片等比缩放填充整个背景区域 */
  width: 700px;
  height: 313px;
  background-repeat: no-repeat;
  //padding-top :200px;
}