.keyMargin {
  width: 100%;
  margin-bottom: 10px;
  text-align: center;
  .mat-form-field { width: 100%; }
  //上传CAD弹窗 inputfile
  .uploadBackGround {
    width: 125px;
    padding: 0 25px;
    height: 30px;
    line-height: 30px;
    position: relative;
    cursor: pointer;
    color: #0275e7;
    font-size: 14px;
    background: #fafafa;
    border: 1px solid #0275e7;
    border-radius: 5px;
    overflow: hidden;
    display: inline-block;
  }
  .uploadBackGround input {
    position: absolute;
    width: 100%;
    right: 0;
    top: 0;
    opacity: 0;
    cursor: pointer
  }
}