WordPress博客添加“返回顶部”按钮
“返回顶部”在网页页面上非常实用,一般主题都没有自带该按钮。可以自己DIY一个。
添加步骤,打开博客的后台管理,依次进入“外观”,“编辑”,打开“footer.php”,在</body>之间添加如下代码,注意替换图片地址(斜体部分)以匹配特定主题。
<div id="full" style="width:88px; height:88px; position:fixed; right:0px;
bottom:0px; margin-left:0px; margin-bottom:0px; z-index:100; text-align:center; cursor:pointer;">
<a>
<img src="https://defcon.cn/wp-content/uploads/2020/12/top.png" border=0 width="48px" width="48px" alt="返回顶部">
</a>
</div>
<script type="text/javascript">
var isie6 = window.XMLHttpRequest ? false: true;
function newtoponload() {
var c = document.getElementById("full");
function b() {
var a = document.documentElement.scrollTop || window.pageYOffset || document.body.scrollTop;
if (a > 0) {
if (isie6) {
c.style.display = "none";
clearTimeout(window.show);
window.show = setTimeout(function() {
var d = document.documentElement.scrollTop || window.pageYOffset || document.body.scrollTop;
if (d > 0) {
c.style.display = "block";
c.style.top = (400 + d) + "px"
}
},
300)
} else {
c.style.display = "block"
}
} else {
c.style.display = "none"
}
}
if (isie6) {
c.style.position = "absolute"
}
window.onscroll = b;
b()
}
if (window.attachEvent) {
window.attachEvent("onload", newtoponload)
} else {
window.addEventListener("load", newtoponload, false)
}
document.getElementById("full").onclick = function() {
window.scrollTo(0, 0)
};
</script>