Practice/_src/desktop/scss/components/_popup_layer.scss

.pop-layer {
  position:fixed;
  top:50%;
  left:50%;
  z-index:1000;
  background:#fff;

  .pop-content {
    border:1px solid #ddd;
  }

  .pop-footer {
    width:100%;
    background:#282828;
    height:30px;
    text-align:right;
    padding:0px 15px;

    [data-toggle="btn-popup-close"] {
      display:inline-block;
      line-height:30px;
      color:#fff;

      &:hover {
        color:#d0d0d0;
      }

      & + & {
        margin-left:30px;
      }
    }
  }
}