如何仅使用CSS和HTML将响应式导航栏菜单居中？

Question

I'm getting into creating responsive design, so I wanted to make a responsive menu. 我正在创建响应式设计，因此我想制作一个响应式菜单。 I found one online that uses CSS and HTML only (no JavaScript or Bootstrap) and I'm tweaking it to my liking. 我在网上找到了一个仅使用CSS和HTML的网站（没有JavaScript或Bootstrap），并且根据自己的喜好进行了调整。 But I'm running in to lots of problems trying to apply normal properties to elements. 但是我在尝试将普通属性应用于元素时遇到了很多问题。 I have a background div that's used to make the nav bar go 100% across the screen (because the original one I got only goes like 25% of the way across the screen), and I also created a container div so that I could put the menu in it. 我有一个背景div，用于使导航栏在屏幕上100％移动（因为我原来的导航栏只在屏幕上移动25％），并且我还创建了一个容器div，以便我可以菜单。 However, when I try to center the menu itself, I either get errors with my responsive menu (which will appear when you shrink the browser window) or I get lots of other junky things happening to the elements on the page. 但是，当我尝试将菜单本身居中时，我的响应式菜单会出现错误（在缩小浏览器窗口时会出现），或者页面元素上发生了很多其他混乱的事情。 Here's the code I'm working with right now. 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>

Answer 1

I got rid of the horrible floats, fixed your positioning issues and centered the menu. 我摆脱了可怕的浮标，解决了定位问题并将菜单居中。

( Demo ) （演示）

body {
    margin:0
}

#menuBackground {
    background:#2f3036;
    width:100%;
    height:50px;
    text-align: center;
}
#menuContainer {
    text-align: center;
}
/*Strip the ul of padding and list styling*/
ul {
    list-style-type:none;
    margin:0;
    padding:0;
}

/*Create a horizontal list with spacing*/
li {
    display:inline-block;
    vertical-align: top;
    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;
    font-size: 1rem;
}

/*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 {
    position: absolute;
    display:none
}

/*Make dropdown links vertical*/
li ul li {
    display:block;
}

/*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;
        white-space: initial;
    }

    /*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
    }
}

如何仅使用CSS和HTML将响应式导航栏菜单居中？

问题描述

1 个解决方案

解决方案1
5 已采纳

如何仅使用CSS和HTML将响应式导航栏菜单居中？

问题描述

1 个解决方案

解决方案1 5 已采纳

解决方案1
5 已采纳