HTML5 h5 微信 浮层 提示 点击右上角，从浏览器打开 pop.png

<style>
.pop {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(0,0,0,.7);
    z-index: 999;
}
</style>

<div class="pop none" id="divpop" style="display: block;">

　　<img src="./img/pop.png" alt="" style='50%; margin-left: 45%;'>

</div>