simditor .simditor-toolbar > ul > li > span.separator {
    display: inline-block;
    background: #cfcfcf;
    width: 1px;
    height: 18px;
    margin: 11px 15px;
    vertical-align: middle;
  }
  .simditor .simditor-toolbar > ul > li > .toolbar-item {
    display: inline-block;
    width: 22px;
    height: 22px;
    outline: none;
    color: #333333;
    font-size: 11px;
    line-height: 22px;
    vertical-align: middle;
    text-align: center;
    text-decoration: none;
  }