0.5 pxグラデーション分割線

      

        

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  el-divider--horizontal {
    display: block;
    height: 1px;
    width: 200%;
    margin: 24px 0;
  }
  .el-divider {
    background-image: linear-gradient(to right, white, black, white);
    position: relative;
    transform: scale(0.5);
    transform-origin: left;
  }
  el-divider__text.is-center {
    left: 50%;
  }
  .el-divider__text {
    position: absolute;
    background-color: #FFF;
    padding: 0 20px;
    color: #303133;
    margin-top: -0.5em;
    transform: scale(2);
  }