我开始创建响应式设计,所以我想制作一个响应式菜单。我发现一个只使用CSS和HTML的在线(没有JavaScript或Bootstrap),我根据自己的喜好调整它。但是我在尝试将常规属性应用于元素时遇到了很多问题。我有一个背景div,用于使导航栏在屏幕上100%移动(因为我得到的原始的只有25%在整个屏幕上),我还创建了一个容器div所以我可以把菜单放进去。但是,当我尝试将菜单本身居中时,我或者在响应式菜单中出现错误(当您缩小浏览器窗口时会出现这种错误)或者我在页面上的元素上发生了很多其他垃圾事件。这是我现在正在使用的代码。
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSS Only Navigation Menu</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="style.css">
<style>
body {
margin: 0;
}
#menuBackground {
background: #2f3036;
width: 100%;
height: 50px;
}
/*Strip the ul of padding and list styling*/
ul {
list-style-type: none;
margin: 0;
padding: 0;
position: absolute;
}
/*Create a horizontal list with spacing*/
li {
display:inline-block;
float: left;
margin-right: 1px;
}
/*Style for menu links*/
li a {
display:block;
min-width:140px;
height: 50px;
text-align: center;
line-height: 50px;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
color: #fff;
background: #2f3036;
text-decoration: none;
}
/*Hover state for top level links*/
li:hover a {
background: #19c589;
}
/*Style for dropdown links*/
li:hover ul a {
background: #f3f3f3;
color: #2f3036;
height: 40px;
line-height: 40px;
}
/*Hover state for dropdown links*/
li:hover ul a:hover {
background: #19c589;
color: #fff;
}
/*Hide dropdown links until they are needed*/
li ul {
display: none;
}
/*Make dropdown links vertical*/
li ul li {
display: block;
float: none;
}
/*Prevent text wrapping*/
li ul li a {
width: auto;
min-width: 100px;
padding: 0 20px;
}
/*Display the dropdown on hover*/
ul li a:hover + .hidden, .hidden:hover {
display: block;
}
/*Style 'show menu' label button and hide it by default*/
.show-menu {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
text-decoration: none;
color: #fff;
background: #19c589;
text-align: center;
padding: 16px 0;
display: none;
width: 100% !important;
}
/*Hide checkbox*/
input[type=checkbox]{
display: none;
}
/*Show menu when invisible checkbox is checked*/
input[type=checkbox]:checked ~ #menu{
display: block;
margin: 0 auto;
}
/*Responsive Styles*/
@media screen and (max-width : 760px){
/*Make dropdown links appear inline*/
ul {
position: static;
display: none;
}
/*Create vertical spacing*/
li {
margin-bottom: 1px;
}
/*Make all menu links full width*/
ul li, li a {
width: 100%;
}
/*Display 'show menu' link*/
.show-menu {
display:block;
}
}
</style>
</head>
<body>
<div id="menuBackground">
<div id="menuContainer">
<label for="show-menu" class="show-menu">Show Menu</label>
<input type="checkbox" id="show-menu" role="button">
<ul id="menu">
<li><a href="#">Home</a></li>
<li>
<a href="#">About ↓</a>
<ul class="hidden">
<li><a href="#">Who We Are</a></li>
<li><a href="#">What We Do</a></li>
</ul>
</li>
<li>
<a href="#">Portfolio ↓</a>
<ul class="hidden">
<li><a href="#">Photography</a></li>
<li><a href="#">Web & User Interface Design</a></li>
<li><a href="#">Illustration</a></li>
</ul>
</li>
<li><a href="#">News</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
</div>
</body>
</html>