HTML+CSS3+JS 实现的下拉菜单


Posted in HTML / CSS onNovember 25, 2020

实现效果

HTML+CSS3+JS 实现的下拉菜单

html

<div class="container">
  <h1 class="title">Dropdown Menu</h1>
  <ul>
    <li class="dropdown">
      <a href="#" data-toggle="dropdown">First Menu <i class="icon-arrow"></i></a>
      <ul class="dropdown-menu">
        <li><a href="#">Home</a></li>
        <li><a href="#">About Us</a></li>
        <li><a href="#">Services</a></li>
        <li><a href="#">Contact</a></li>
      </ul>
    </li>
    <li class="dropdown">
      <a href="#" data-toggle="dropdown">Second Menu <i class="icon-arrow"></i></a>
      <ul class="dropdown-menu">
        <li><a href="#">Home</a></li>
        <li><a href="#">About Us</a></li>
        <li><a href="#">Services</a></li>
        <li><a href="#">Contact</a></li>
      </ul>
    </li>
    <li class="dropdown">
      <a href="#" data-toggle="dropdown">Third Menu <i class="icon-arrow"></i></a>
      <ul class="dropdown-menu">
        <li><a href="#">Home</a></li>
        <li><a href="#">About Us</a></li>
        <li><a href="#">Services</a></li>
        <li><a href="#">Contact</a></li>
      </ul>
    </li>
  </ul>
  <p class="text-center">
    See this same menu only with CSS3: <a href="https://codepen.io/pedronauck/pen/jaluz" target="_blank">https://codepen.io/pedronauck/pen/jaluz</a>
  </p>
</div>

css

@import url("https://fonts.googleapis.com/css?family=Lato:300,400,700,900");
@import url(https://fonts.googleapis.com/css?family=Pacifico);
body {
  font-family: "Lato", Helvetica, Arial;
  font-size: 16px;
}

.text-center {
  text-align: center;
}

*, *:before, *:after {
  -webkit-border-sizing: border-box;
  -moz-border-sizing: border-box;
  border-sizing: border-box;
}

.container {
  width: 350px;
  margin: 50px auto;
}
.container > ul {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
}

.title {
  font-family: 'Pacifico';
  font-weight: norma;
  font-size: 40px;
  text-align: center;
  line-height: 1.4;
  color: #2980B9;
}

.dropdown a {
  text-decoration: none;
}
.dropdown [data-toggle="dropdown"] {
  position: relative;
  display: block;
  color: white;
  background: #2980B9;
  -moz-box-shadow: 0 1px 0 #409ad5 inset, 0 -1px 0 #20638f inset;
  -webkit-box-shadow: 0 1px 0 #409ad5 inset, 0 -1px 0 #20638f inset;
  box-shadow: 0 1px 0 #409ad5 inset, 0 -1px 0 #20638f inset;
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.3);
  padding: 10px;
}
.dropdown [data-toggle="dropdown"]:hover {
  background: #2c89c6;
}
.dropdown .icon-arrow {
  position: absolute;
  display: block;
  font-size: 0.7em;
  color: #fff;
  top: 14px;
  right: 10px;
}
.dropdown .icon-arrow.open {
  -moz-transform: rotate(-180deg);
  -ms-transform: rotate(-180deg);
  -webkit-transform: rotate(-180deg);
  transform: rotate(-180deg);
  -moz-transition: -moz-transform 0.6s;
  -o-transition: -o-transform 0.6s;
  -webkit-transition: -webkit-transform 0.6s;
  transition: transform 0.6s;
}
.dropdown .icon-arrow.close {
  -moz-transform: rotate(0deg);
  -ms-transform: rotate(0deg);
  -webkit-transform: rotate(0deg);
  transform: rotate(0deg);
  -moz-transition: -moz-transform 0.6s;
  -o-transition: -o-transform 0.6s;
  -webkit-transition: -webkit-transform 0.6s;
  transition: transform 0.6s;
}
.dropdown .icon-arrow:before {
  content: '\25BC';
}
.dropdown .dropdown-menu {
  max-height: 0;
  overflow: hidden;
  list-style: none;
  padding: 0;
  margin: 0;
}
.dropdown .dropdown-menu li {
  padding: 0;
}
.dropdown .dropdown-menu li a {
  display: block;
  color: #6f6f6f;
  background: #EEE;
  -moz-box-shadow: 0 1px 0 white inset, 0 -1px 0 #d5d5d5 inset;
  -webkit-box-shadow: 0 1px 0 white inset, 0 -1px 0 #d5d5d5 inset;
  box-shadow: 0 1px 0 white inset, 0 -1px 0 #d5d5d5 inset;
  text-shadow: 0 -1px 0 rgba(255, 255, 255, 0.3);
  padding: 10px 10px;
}
.dropdown .dropdown-menu li a:hover {
  background: #f6f6f6;
}
.dropdown .show, .dropdown .hide {
  -moz-transform-origin: 50% 0%;
  -ms-transform-origin: 50% 0%;
  -webkit-transform-origin: 50% 0%;
  transform-origin: 50% 0%;
}
.dropdown .show {
  display: block;
  max-height: 9999px;
  -moz-transform: scaleY(1);
  -ms-transform: scaleY(1);
  -webkit-transform: scaleY(1);
  transform: scaleY(1);
  animation: showAnimation 0.5s ease-in-out;
  -moz-animation: showAnimation 0.5s ease-in-out;
  -webkit-animation: showAnimation 0.5s ease-in-out;
  -moz-transition: max-height 1s ease-in-out;
  -o-transition: max-height 1s ease-in-out;
  -webkit-transition: max-height 1s ease-in-out;
  transition: max-height 1s ease-in-out;
}
.dropdown .hide {
  max-height: 0;
  -moz-transform: scaleY(0);
  -ms-transform: scaleY(0);
  -webkit-transform: scaleY(0);
  transform: scaleY(0);
  animation: hideAnimation 0.4s ease-out;
  -moz-animation: hideAnimation 0.4s ease-out;
  -webkit-animation: hideAnimation 0.4s ease-out;
  -moz-transition: max-height 0.6s ease-out;
  -o-transition: max-height 0.6s ease-out;
  -webkit-transition: max-height 0.6s ease-out;
  transition: max-height 0.6s ease-out;
}

@keyframes showAnimation {
  0% {
    -moz-transform: scaleY(0.1);
    -ms-transform: scaleY(0.1);
    -webkit-transform: scaleY(0.1);
    transform: scaleY(0.1);
  }
  40% {
    -moz-transform: scaleY(1.04);
    -ms-transform: scaleY(1.04);
    -webkit-transform: scaleY(1.04);
    transform: scaleY(1.04);
  }
  60% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.04);
    -ms-transform: scaleY(1.04);
    -webkit-transform: scaleY(1.04);
    transform: scaleY(1.04);
  }
  100% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.02);
    -ms-transform: scaleY(1.02);
    -webkit-transform: scaleY(1.02);
    transform: scaleY(1.02);
  }
  100% {
    -moz-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
}
@-moz-keyframes showAnimation {
  0% {
    -moz-transform: scaleY(0.1);
    -ms-transform: scaleY(0.1);
    -webkit-transform: scaleY(0.1);
    transform: scaleY(0.1);
  }
  40% {
    -moz-transform: scaleY(1.04);
    -ms-transform: scaleY(1.04);
    -webkit-transform: scaleY(1.04);
    transform: scaleY(1.04);
  }
  60% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.04);
    -ms-transform: scaleY(1.04);
    -webkit-transform: scaleY(1.04);
    transform: scaleY(1.04);
  }
  100% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.02);
    -ms-transform: scaleY(1.02);
    -webkit-transform: scaleY(1.02);
    transform: scaleY(1.02);
  }
  100% {
    -moz-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
}
@-webkit-keyframes showAnimation {
  0% {
    -moz-transform: scaleY(0.1);
    -ms-transform: scaleY(0.1);
    -webkit-transform: scaleY(0.1);
    transform: scaleY(0.1);
  }
  40% {
    -moz-transform: scaleY(1.04);
    -ms-transform: scaleY(1.04);
    -webkit-transform: scaleY(1.04);
    transform: scaleY(1.04);
  }
  60% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.04);
    -ms-transform: scaleY(1.04);
    -webkit-transform: scaleY(1.04);
    transform: scaleY(1.04);
  }
  100% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.02);
    -ms-transform: scaleY(1.02);
    -webkit-transform: scaleY(1.02);
    transform: scaleY(1.02);
  }
  100% {
    -moz-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
}
@keyframes hideAnimation {
  0% {
    -moz-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
  60% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.02);
    -ms-transform: scaleY(1.02);
    -webkit-transform: scaleY(1.02);
    transform: scaleY(1.02);
  }
  100% {
    -moz-transform: scaleY(0);
    -ms-transform: scaleY(0);
    -webkit-transform: scaleY(0);
    transform: scaleY(0);
  }
}
@-moz-keyframes hideAnimation {
  0% {
    -moz-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
  60% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.02);
    -ms-transform: scaleY(1.02);
    -webkit-transform: scaleY(1.02);
    transform: scaleY(1.02);
  }
  100% {
    -moz-transform: scaleY(0);
    -ms-transform: scaleY(0);
    -webkit-transform: scaleY(0);
    transform: scaleY(0);
  }
}
@-webkit-keyframes hideAnimation {
  0% {
    -moz-transform: scaleY(1);
    -ms-transform: scaleY(1);
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
  }
  60% {
    -moz-transform: scaleY(0.98);
    -ms-transform: scaleY(0.98);
    -webkit-transform: scaleY(0.98);
    transform: scaleY(0.98);
  }
  80% {
    -moz-transform: scaleY(1.02);
    -ms-transform: scaleY(1.02);
    -webkit-transform: scaleY(1.02);
    transform: scaleY(1.02);
  }
  100% {
    -moz-transform: scaleY(0);
    -ms-transform: scaleY(0);
    -webkit-transform: scaleY(0);
    transform: scaleY(0);
  }
}

js

// Dropdown Menu
var dropdown = document.querySelectorAll('.dropdown');
var dropdownArray = Array.prototype.slice.call(dropdown,0);
dropdownArray.forEach(function(el){
	var button = el.querySelector('a[data-toggle="dropdown"]'),
			menu = el.querySelector('.dropdown-menu'),
			arrow = button.querySelector('i.icon-arrow');

	button.onclick = function(event) {
		if(!menu.hasClass('show')) {
			menu.classList.add('show');
			menu.classList.remove('hide');
			arrow.classList.add('open');
			arrow.classList.remove('close');
			event.preventDefault();
		}
		else {
			menu.classList.remove('show');
			menu.classList.add('hide');
			arrow.classList.remove('open');
			arrow.classList.add('close');
			event.preventDefault();
		}
	};
})

Element.prototype.hasClass = function(className) {
    return this.className && new RegExp("(^|\\s)" + className + "(\\s|$)").test(this.className);
};

以上就是HTML+CSS3+JS 实现的下拉菜单的详细内容,更多关于HTML+CSS3+JS 下拉菜单的资料请关注三水点靠木其它相关文章!

HTML / CSS 相关文章推荐
使用JS+CSS3技术:让你的名字动起来
Apr 27 HTML / CSS
CSS的pointer-events属性详细介绍(作用和注意事项)
Apr 23 HTML / CSS
简单总结CSS3中视窗单位Viewport的常见用法
Feb 04 HTML / CSS
CSS3 animation实现逐帧动画效果
Jun 02 HTML / CSS
css3 media 响应式布局的简单实例
Aug 03 HTML / CSS
CSS3之2D与3D变换的实现方法
Jan 28 HTML / CSS
css3使用animation属性实现炫酷效果(推荐)
Feb 04 HTML / CSS
CSS3实现渐变背景兼容问题
May 06 HTML / CSS
webapp字号大小跟随系统字号大小缩放的示例代码
Dec 26 HTML / CSS
值得收藏的HTML5资源(学习html5的朋友可以收藏下)
Jul 20 HTML / CSS
详解三种方式实现平滑滚动页面到顶部的功能
Apr 23 HTML / CSS
分享CSS盒子模型隐藏的几种方式
Feb 28 HTML / CSS
CSS3 实现倒计时效果
Nov 25 #HTML / CSS
CSS3贝塞尔曲线示例:创建链接悬停动画效果
Nov 19 #HTML / CSS
CSS3实现菜单悬停效果
Nov 17 #HTML / CSS
详解CSS3:overflow属性
Nov 17 #HTML / CSS
详解css3中的伪类before和after常见用法
Nov 17 #HTML / CSS
CSS3+HTML5+JS 实现一个块的收缩与展开动画效果
Nov 17 #HTML / CSS
10种CSS3实现的loading动画,挑一个走吧?
Nov 16 #HTML / CSS
You might like
摘自织梦CMS中的图片处理类
2015/08/08 PHP
用PHP写的一个冒泡排序法的函数简单实例
2016/05/26 PHP
thinkPHP数据库增删改查操作方法实例详解
2016/12/06 PHP
ThinkPHP Where 条件中常用表达式示例(详解)
2017/03/31 PHP
PHP环形链表实现方法示例
2017/09/15 PHP
thinkphp5框架扩展redis类方法示例
2019/05/06 PHP
神奇的代码 通杀各种网站-可随意修改复制页面内容
2008/07/17 Javascript
js实现屏蔽默认快捷键调用自定义事件示例
2013/06/18 Javascript
javascript ready和load事件的区别示例介绍
2013/08/30 Javascript
JavaScript事件委托的技术原理探讨示例
2014/04/17 Javascript
window.open()实现post传递参数
2015/03/12 Javascript
javascript如何操作HTML下拉列表标签
2015/08/20 Javascript
xmlplus组件设计系列之图标(ICON)(1)
2017/05/05 Javascript
禁止弹窗中蒙层底部页面跟随滚动的几种方法
2017/12/07 Javascript
Vue动态生成表格的行和列
2019/07/18 Javascript
Vue的编码技巧与规范使用详解
2019/08/28 Javascript
vue 实现用户登录方式的切换功能
2020/04/14 Javascript
Element Notification通知的实现示例
2020/07/27 Javascript
[49:54]Ti4 循环赛第三日 LGD vs Titan
2014/07/12 DOTA
[01:57]2016完美“圣”典风云人物:国士无双专访
2016/12/04 DOTA
浅谈python import引入不同路径下的模块
2017/07/11 Python
Python处理命令行参数模块optpars用法实例分析
2018/05/31 Python
Python实现快速计算词频功能示例
2018/06/25 Python
python生成随机红包的实例写法
2019/09/02 Python
python3通过udp实现组播数据的发送和接收操作
2020/05/05 Python
详解Python直接赋值,深拷贝和浅拷贝
2020/07/09 Python
canvas烟花特效锦集
2018/01/17 HTML / CSS
HTML5 placeholder(空白提示)属性介绍
2013/08/07 HTML / CSS
英国泽西岛植物:Jersey Plants Direct
2019/08/07 全球购物
师范生实习自我鉴定
2013/11/01 职场文书
自我评价范文点评
2013/12/04 职场文书
《春天来了》教学反思
2014/04/07 职场文书
竞选学生会演讲稿
2014/04/25 职场文书
离婚被告答辩状
2015/05/22 职场文书
matlab xlabel位置的设置方式
2021/05/21 Python
python 详解turtle画爱心代码
2022/02/15 Python