我想知道如何在用户突出显示的导航栏网页的文本下添加下划线颜色，就像它如何平均扩展两侧的方式一样。这是example
以下是我的代码。
body{
margin: 0;
padding: 0;
}
header{
height: 10vh;
background-color: #4D5061;
}
nav ul{
list-style-type: none;
overflow: hidden;
text-align: center;
}
nav ul li{
display: inline-block;
padding-left: 15px;
padding-top: 3.5vh;
}
nav ul li a{
color: white;
text-decoration: none;
font-size: 14pt;
font-family:'Roboto', sans-serif;
}
#logo{
padding-top: 2vh;
padding-left: 20px;
float: left;
}
section{
position:relative;
}
.section1{
height:93vh;
background-color: #FFFFFF;
text-align: center;
}
.section2{
height:50vh;
background-color: #A59E8C;
text-align:center;
color:white;
padding-top:23vh;
}
.contact_section{
height:93vh;
background-color: grey;
}
.hero{
height:750px;
}
h1{
font-family:'Roboto', sans-serif;
color: white;
}
.container-fluid{
padding: 60px 50px;
}
.bg-grey{
background-color: #f6f6f6;
}
.logo-small{
color: #000000;
font-size: 50px;
}
.logo{
color: #000000;
font-size: 200px;
}
@media screen and (max-width: 768px){
.col-sm-4 {
text-align: center;
margin: 25px 0;
}
.fa-angle-down{
color: #4D5061;
}
footer{
height:10vh;
}<!DOCTYPE html>
<html lang="en">
<html>
<head>
<title>Liam Docherty's Digital Portfolio</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<header>
<div id="logo">
<img src="http://placehold.it/60x60" alt=""></div>
<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">About Me</a></li>
<li><a href="#">Units</a></li>
<li><a href="#">Clients</a></li>
<li><a href="#contact-me">Contact Me</a></li>
</ul>
</nav>
</header>
<section class="section1">
<div class="hero"></div>
<i class="fa fa-angle-down" style="font-size:100px;"></i>
</section>
<section class="section2">
<div class="banner">
<h1>What I can offer you</h1>
<p> Feel free to contact me regarding any </p>
<div class="container-fluid text-center">
<div class="row">
<div class="col-sm-4">
<span class="glyphicon glyphicon-off logo-small"></span>
<h4>Availability</h4>
<p>You can expect a response with 24 hours of the sent message. </p>
</div>
</div>
</div>
</div>
</section>
<section id="contact-me" class="contact_section">
</section>
</body>
<footer>
</footer>
</html>
答案 0 :(得分：0)
答案就像使用:hover后缀和选择器来定位链接的悬停状态一样简单。我还建议将填充放在链接本身而不是<li>上，以便可点击区域更好。
body{
margin: 0;
padding: 0;
}
header{
height: 10vh;
background-color: #4D5061;
}
nav ul{
list-style-type: none;
overflow: hidden;
text-align: center;
}
nav ul li{
display: inline-block;
}
nav ul li a{
display: inline-block;
padding: 3.5vh 8px 4px;
color: white;
text-decoration: none;
font-size: 14pt;
font-family:'Roboto', sans-serif;
}
nav ul li:hover a{
text-decoration: none;
color: red;
border-bottom: 1px solid red;
}
#logo{
padding-top: 2vh;
padding-left: 20px;
float: left;
}
section{
position:relative;
}
.section1{
height:93vh;
background-color: #FFFFFF;
text-align: center;
}
.section2{
height:50vh;
background-color: #A59E8C;
text-align:center;
color:white;
padding-top:23vh;
}
.contact_section{
height:93vh;
background-color: grey;
}
.hero{
height:750px;
}
h1{
font-family:'Roboto', sans-serif;
color: white;
}
.container-fluid{
padding: 60px 50px;
}
.bg-grey{
background-color: #f6f6f6;
}
.logo-small{
color: #000000;
font-size: 50px;
}
.logo{
color: #000000;
font-size: 200px;
}
@media screen and (max-width: 768px){
.col-sm-4 {
text-align: center;
margin: 25px 0;
}
.fa-angle-down{
color: #4D5061;
}
footer{
height:10vh;
}<!DOCTYPE html>
<html lang="en">
<html>
<head>
<title>Liam Docherty's Digital Portfolio</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<header>
<div id="logo">
<img src="http://placehold.it/60x60" alt=""></div>
<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">About Me</a></li>
<li><a href="#">Units</a></li>
<li><a href="#">Clients</a></li>
<li><a href="#contact-me">Contact Me</a></li>
</ul>
</nav>
</header>
<section class="section1">
<div class="hero"></div>
<i class="fa fa-angle-down" style="font-size:100px;"></i>
</section>
<section class="section2">
<div class="banner">
<h1>What I can offer you</h1>
<p> Feel free to contact me regarding any </p>
<div class="container-fluid text-center">
<div class="row">
<div class="col-sm-4">
<span class="glyphicon glyphicon-off logo-small"></span>
<h4>Availability</h4>
<p>You can expect a response with 24 hours of the sent message. </p>
</div>
</div>
</div>
</div>
</section>
<section id="contact-me" class="contact_section">
</section>
</body>
<footer>
</footer>
</html>