<template>
    <div class="second-sheet">
        <slot></slot>
    </div>
</template>
<!-- 注意：父元素要有定位属性 -->
<style lang="scss">
.second-sheet {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 10;
    background: #fff;
}
</style>
