我在使用页眉 div 时遇到问题。查看时它似乎扩展到 1000 像素，即使我认为我没有在 css 中定义它。我只想要左侧的导航和最右侧的 Logo 或文字。如何将其放置在内部或修复标题 div？
body {
margin: 0;
height: 100%;
}
#container {
width: 100%;
height: auto;
background-color: gray;
}
#header {
width: 75%;
height: 50px;
margin-left: auto;
margin-right: auto;
background-color: white;
}
.navbar {
width: 25%;
height: 30px;
}
.navbar ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: white;
}
.navbar li {
float: left;
}
li a {
display: block;
color: red;
padding: 10px;
}
li a:hover {
background-color: #111;
}
.sitename {
float: right;
}
#content {
width: 75%;
height: 600px;
margin-left: auto;
margin-right: auto;
background-color: purple;
}
.box1 {
width: 25%;
height: 300px;
float: left;
background-color: red;
}
.box2 {
width: 25%;
height: 300px;
float: left;
background-color: orange;
}
.box3 {
width: 25%;
height: 300px;
float: left;
background-color: green;
}
#footer {
width: 75%;
height: 50px;
margin-left: auto;
margin-right: auto;
background-color: yellow;
}<div id="container">
<div id="header">
<div class="navbar">
<ul>
<li><a href="#home">Home</a>
</li>
<li><a href="#news">News</a>
</li>
<li><a href="#contact">Contact</a>
</li>
<li><a href="#about">About</a>
</li>
</ul>
<div class="sitename">Hello</div>
</div>
</div>
<div id="content">
<div class="box1"></div>
<div class="box2"></div>
<div class="box3"></div>
</div>
<div id="footer"></div>
</div>最佳答案
将 navbar 的宽度设置为 100%
将 float:left 添加到导航栏链接上
body {
margin: 0;
height: 100%;
}
#container {
width: 100%;
height: auto;
background-color: gray;
}
#header {
width: 75%;
height: 50px;
margin: auto;
background-color: white;
}
.navbar {
height: 30px;
width: 100%;
padding: 10px 0;
}
.navbar ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: white;
float: left;
}
.navbar li {
float: left;
}
li a {
display: block;
color: red;
padding: 10px;
}
li a:hover {
background-color: #111;
}
.sitename {
float: right;
margin-right: 20px;
}
#content {
width: 75%;
height: 600px;
margin-left: auto;
margin-right: auto;
background-color: purple;
}
.box1 {
width: 25%;
height: 300px;
float: left;
background-color: red;
}
.box2 {
width: 25%;
height: 300px;
float: left;
background-color: orange;
}
.box3 {
width: 25%;
height: 300px;
float: left;
background-color: green;
}
#footer {
width: 75%;
height: 50px;
margin-left: auto;
margin-right: auto;
background-color: yellow;
}<html>
<head>
<title>Home</title>
</head>
<body>
<div id="container">
<div id="header">
<div class="navbar">
<ul>
<li><a href="#home">Home</a>
</li>
<li><a href="#news">News</a>
</li>
<li><a href="#contact">Contact</a>
</li>
<li><a href="#about">About</a>
</li>
</ul>
<div class="sitename">Hello</div>
</div>
</div>
<div id="content">
<div class="box1"></div>
<div class="box2"></div>
<div class="box3"></div>
</div>
<div id="footer"></div>
</div>
</body>
</html>关于html - 如何在页眉中放置 div？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37605231/