【loading加載樣式】前端loading圖標加載樣式

html代碼：

<div class="loading" style="display: none;">

      <img src="/Public/images/loading.gif">

</div>

css代碼：

.loading {
    width: 100%;
    height: 100vh;
    line-height: 100vh;
    text-align: center;
    position: fixed;
    top: 0px;
    left: 0px;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.5);
}

.loading img {
    width: 45px;
     
}