div大小固定，图片水平垂直居中

div大小固定，图片水平垂直居中

.thimgBox-lzh{
    width:80px;height:80px;margin:auto;text-align:center;
    vertical-align: middle;
    text-align: center;
    position: relative;
  }
 .imgBox-lzh{
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;   
    text-align: center;
    padding: 0.5rem;
    position: absolute;
    top:50%;
    left:50%;    
    transform:translate(-50%,-50%);
    text-align: center;
  }
  /***************************************************/
 .thimgBox-lzh_1{
    width:60px;height:60px;margin:auto;text-align:center;display: table-cell;
    vertical-align: middle;
    text-align: center;
  }
  .imgBox-lzh_1{
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;   
    text-align: center;
    padding: 0.5rem;
  }