.expression {
  width: 420px;
  overflow: hidden;
  display: flex;
  position: relative;
  padding-bottom: 10px;

  .box {
    width: 420px;
    display: flex;
    flex-flow: row wrap;
    flex-shrink: 0;
    transition: all .5s;

    >span {
      font-size: 20px;
      padding: 5px;
      cursor: pointer;
    }
  }

  .bottom {
    position: absolute;
    bottom: 0px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .yd {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #efefef;
    margin-right: 5px;
    cursor: pointer;
  }

  .action {
    background-color: yellowgreen;
  }
}

.quill_editor {
  width: 100%;

  img {
    width: 20px;
    height: 20px;
  }
}

.myPre img {
  vertical-align: bottom;
}