頁面右下角返回頂部
html
<div class="sriLink">
<div class="back_top" onclick="window.scrollTo(0,0);return false" style="display: none;">
<a href="javascript:void(0);"></a>
</div>
<div class="go_aboutUs">
<a href="/aboutus" target="_blank">關於<br>我們</a>
</div>
<div class="go_feedBack">
<a href="javascript:void(0);" target="_blank">意見<br>反饋</a>
</div>
</div>
css
.sriLink{
position: fixed;
right: 50%;
margin-right: -665px;
bottom: 90px;
z-index: 100;
}
.sriLink a{
display: block;
width: 50px;
height: 50px;
background: #eceded;
text-align: center;
padding-top: 8px;
color: white;
border-radius: 3px;
margin-top: 5px;
line-height: 16px;
}
.sriLink .back_top a {
background: #e4e4e4 url(../image/back_top.png) no-repeat center;
}
js
/*滾動事件*/
window.addEventListener(`scroll`,function(e){
var t = document.documentElement.scrollTop || document.body.scrollTop;
if(t > 400 ){
$(`.back_top`).show();
}else{
$(`.back_top`).hide();
}
})
/*全域性頁面中間內容高度*/
$().ready(function(){
var Height = $(window).height();
var h = (Height - 212)+`px` //頭部和底部總高為212
$(`.sriContainer`).css(`min-height`,h);
})