1.html
<div class="down-app">
<span id="dowm-close">x</span>
<dl>
<dt>logo</dt>
<dd>
<h3>某某公司</h3>
<p>某某公司宗旨</p>
</dd>
</dl>
<div class="down-app-main clearfix"><a href="#">某某公司</a></div>
</div>
<div class="down-app-bg"></div>
2.css
.down-app-bg{position:fixed!important;bottom:-1px!important;width:100%;max-width:640px;min-width:320px;height:80px;z-index:1;display:none}
.down-app{position:fixed!important;bottom:0!important;width:100%;max-width:640px;min-width:320px;height:80px;z-index:2;direction:down;background:rgba(0,0,0,.71)}
.down-app span{display:inline-block;height:100%;width:10%;padding-left:2%;float:left}
.down-app dl{margin-top:.8%;height:100%;float:left}
.down-app dl dt{margin-right:10px;width:50px;height:100%;float:left}
.down-app dl dd{float:left}
.down-app dl dd h3{margin-top:10%;line-height:30px;font-size:18px;color:#FFF}
.down-app dl dd p{color:#fff;font-size:12px}
.down-app-main{text-align:right;height:100%;float:left;width:35%;position:relative}
.down-app-main a{position:absolute;right:0;width:90px;height:40px;text-align:center;line-height:40px;background:#f8b62b;display:inline-block;color:#fff;border-radius:5px;margin-top:15%}
3. js
<script src="js/zepto.min.js"></script>
<script>
$(function(){
var downapp=$(".down-app,.down-app-bg");
downapp[sessionStorage.getItem('downloadAPP') || 'show']();
$("#dowm-close").on("click",function(){
downapp.remove();
sessionStorage.setItem('downloadAPP', 'remove');
});
//获取input时，app下载代码块隐藏
var zm_input=$('#zm-user-reg-form-c input');
zm_input.on('focus',function(){
if ( $('.down-app').length){
downapp.hide();
}
}).on('blur',function(){
if ( $('.down-app').length){
downapp.show();
}
});
})
</script>
)
