修改element中v-loading的自定義圖片

/*elementui loading css 覆蓋 開始*/

.el-loading-spinner .circular{
  width: 42px;
  height: 42px;
  animation: loading-rotate 2s linear infinite;
  display: none;
}
.el-loading-spinner{
  background: url(../assets/img/vloading.gif) no-repeat;
  background-size: 48px 48px;
  width: 100%;
  height: 100%;
  position: relative;
  top: 50%;
  left: 45%;
}