js制作可以延时消失的菜单

时间：2021-05-26

本文实例为大家分享了js可延时消失的菜单，供大家参考，具体内容如下

代码：

<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title><style>*{padding:0;margin:0;}ul{list-style:none;}a{text-decoration:none;}#menu{height:200px;border:1px solid #ccc;margin:40px auto;position:relative;}#title{position:absolute;left:0;top:0;height:50px;border:1px solid yellow;background:blue;}#title li{text-align:center;width:80px;height:30px;line-height:30px;float:left;background:#f1f1f1;border-radius:10px;color:#000;font-weight:bold;margin:10px 5px;cursor:pointer;}#subtitle{height:30px;;border:1px solid #ccc;border-radius:10px;position:absolute;top:60px;left:10px;}#subtitle:before{content:'';position:absolute;border-top:7px solid transparent;border-right:7px solid transparent;border-bottom:9px solid #ccc;border-left:7px solid transparent;top:-16px;left:30px;}#subtitle:after{content:'';position:absolute;border-top:7px solid transparent;border-right:7px solid transparent;border-bottom:9px solid #fff;border-left:7px solid transparent;top:-15px;left:30px;}#subtitle a{display:inline-block;height:20px;line-height:20px;margin:5px 5px;float:left;}#subtitle a:hover{text-decoration:underline;}</style><script>window.onload = function () { var title = document.getElementById('title'); var subtitle = document.getElementById('subtitle'); var aA = subtitle.getElementsByTagName('a'); var aLi = title.getElementsByTagName('li'); var arr = [ { title : '首页', subtitle : ['首页1','首页2','首页3']}, { title : '关于我们', subtitle : ['关于我们1','关于我们2','关于我们3','关于我们4','关于我们5']}, { title : '课程', subtitle : ['课程1','课程2','课程3']}, { title : '新闻', subtitle : ['新闻1','新闻2']}, ]; var timer = null; for ( var i = 0; i < arr.length; i++ ) { var oLi = document.createElement('li'); oLi.innerHTML = arr[i].title; oLi.index = i; oLi.onmouseover = function () { var width = parseInt(getStyle(this,'width')); var marginRight = parseInt(getStyle(this,'marginRight')); clearTimeout(timer); subtitle.innerHTML = ''; createA(this.index); subtitle.style.left = 10 + (width + marginRight) * this.index + 'px'; subtitle.style.display = 'block'; } oLi.onmouseout = function () { timer = setTimeout(function () { subtitle.style.display = 'none'; }, 100); } title.appendChild(oLi); } subtitle.onmouseover = function () { clearTimeout(timer); this.style.display = 'block'; } subtitle.onmouseout = function () { this.style.display = 'none'; } createA(0); function createA(index){ for ( var j = 0; j < arr[index].subtitle.length; j++ ){ var oA = document.createElement('a'); oA.innerHTML = arr[index].subtitle[j]; subtitle.appendChild(oA); } } function getStyle(ele, attr) { return ele.currentStyle ? ele.currentStyle[attr] : getComputedStyle(ele,0)[attr]; }}</script></head><body><div id="menu"> <ul id="title"> </ul> <div id="subtitle"> </div></div></body></html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

声明：本页内容来源网络，仅供用户参考；我单位不保证亦不表示资料全面及准确无误，也不保证亦不表示这些资料为最新信息，如因任何原因，本网内容或者用户因倚赖本网内容造成任何损失或损害，我单位将不会负任何法律责任。如涉及版权问题，请提交至online#300.cn邮箱联系删除。

相关文章