CSS 3D旋转正方形

    <template>
    	<view class="loading">
    		<view class="cube">
    			<view class="side front"></view>
    			<view class="side back"></view>
    			<view class="side top"></view>
    			<view class="side bottom"></view>
    			<view class="side left"></view>
    			<view class="side right"></view>
    		</view>
    	</view>
    </template>

    <script>

    </script>

    <style>
    	body {
    		background-color: #212121;
    		/* 设置页面背景颜色为 #212121 */
    	}
    	.loading {
    		width: 100px;
    		/* 设置宽度为 100px */
    		height: 100px;
    		/* 设置高度为 100px */
    		perspective: 1000px;
    		/* 设置透视视