本文实例为大家分享了js实现全屏侧边栏的具体代码，供大家参考，具体内容如下

在浏览网站时我们经常会看到一个菜单按钮，点一下就会出现一栏侧边导航栏，直接上代码！

HTML部分

<div id="mySidenav" class="sidenav"> <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a> <a href="#">About</a> <a href="#">Services</a> <a href="#">Clients</a> <a href="#">Contact</a> </div> <h2>全屏幕侧边栏</h2> <p>点击以下菜单图标打开侧边栏</p> <span style="font-size:30px;cursor:pointer" onclick="openNav()">&#9776; 打开</span>

css部分

body { font-family: "Lato", sans-serif; } .sidenav { height: 100%;width: 0;position: fixed;z-index: 1; top: 0; left: 0; background-color: #111; overflow-x: hidden; transition: 0.5s; padding-top: 60px; text-align:center; } .sidenav a { padding: 8px 8px 8px 32px; text-decoration: none; font-size: 25px;color: #818181; display: block; transition: 0.3s; } .sidenav a:hover{ color: #f1f1f1; } .sidenav .closebtn {position: absolute; top: 0; right: 25px; font-size: 36px; margin-left: 50px; } @media screen and (max-height: 450px) { .sidenav {padding-top: 15px; } .sidenav a {font-size: 18px; } }

JavaScript部分

function openNav() {document.getElementById("mySidenav").style.width = "100%";}function closeNav() {document.getElementById("mySidenav").style.width = "0";}

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。