Question

我在将a标签的文本移到nav栏的中间时遇到问题，如果我使用padding-top，则鼠标悬停会导致标签溢出，因此我使用overflow: hidden;栏上的nav，什么是解决此问题的最佳方法？请注意，我的问题不是关于如何在p内将像div标签之类的其他元素的子元素居中，而且我正在寻求这种当前情况下的最佳方法，我想很多新手都会觉得棘手。

html, body {
    margin: 0px;
}
header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    color: white;
    background: black;
}

header .title{
    padding-left: 10px;
    font-size: 2rem;
}
header h1 {
    margin: 0;
}

nav {
    overflow: hidden;
}

nav ul {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    margin: 0;
    height: 100%;
}

nav ul li {
    list-style-type: none;
    text-align: center;
}

nav a {
    color: white;
    font-weight: bold;
    text-decoration: none;
    font-size: 1.4rem;
    display: block;
    height: 100%;
    padding-top: 20px;
}
nav a:hover {
    background-color: red;
}

<!DOCTYPE html>
<html lang="en">

<head>
    <link rel="stylesheet" href="./css/style.css">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div class="wrapper">
        <header>
            <div class="title">
                <h1>Biblio</h1>
            </div>
            <nav>
                <ul>
                    <li><a href="#">home</a></li>
                    <li><a href="#">languages</a></li>
                    <li><a href="#">books</a></li>
                </ul>
            </nav>
        </header>
    </div>
</body>

</html>

Answer 1

nav a {
  display: flex;
  align-items: center;
}

...只要它们的顶部和底部填充值相等，就会将它们垂直居中：

html, body {
    margin: 0px;
}
header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    color: white;
    background: black;
}

header .title{
    padding-left: 10px;
    font-size: 2rem;
}
header h1 {
    margin: 0;
}

nav {
    overflow: hidden;
}

nav ul {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    margin: 0;
    height: 100%;
}

nav ul li {
    list-style-type: none;
    text-align: center;
}

nav a {
    color: white;
    font-weight: bold;
    text-decoration: none;
    font-size: 1.4rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}
nav a:hover {
    background-color: red;
}

<!DOCTYPE html>
<html lang="en">

<head>
    <link rel="stylesheet" href="./css/style.css">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div class="wrapper">
        <header>
            <div class="title">
                <h1>Biblio</h1>
            </div>
            <nav>
                <ul>
                    <li><a href="#">home</a></li>
                    <li><a href="#">languages</a></li>
                    <li><a href="#">books</a></li>
                </ul>
            </nav>
        </header>
    </div>
</body>

</html>

但是，更大的问题是您使用网格使所有按钮的宽度相等。顶部导航菜单普遍接受的范例是：每个元素采用所需的宽度+一些填充。如：

nav ul {
  display: flex;
  justify-content: flex-end;
}

nav a {
  display: flex;
  align-items: center;
  padding: 0 .75em;
}

html, body {
    margin: 0px;
}
header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    color: white;
    background: black;
}

header .title{
    padding-left: 10px;
    font-size: 2rem;
}
header h1 {
    margin: 0;
}

nav {
    overflow: hidden;
}

nav ul {
    display: flex;
    justify-content: flex-end;
    margin: 0;
    height: 100%;
}

nav ul li {
    list-style-type: none;
    text-align: center;
}

nav a {
    color: white;
    font-weight: bold;
    text-decoration: none;
    font-size: 1.4rem;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 .75em;
}
nav a:hover {
    background-color: red;
}

<!DOCTYPE html>
<html lang="en">

<head>
    <link rel="stylesheet" href="./css/style.css">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div class="wrapper">
        <header>
            <div class="title">
                <h1>Biblio</h1>
            </div>
            <nav>
                <ul>
                    <li><a href="#">home</a></li>
                    <li><a href="#">languages</a></li>
                    <li><a href="#">books</a></li>
                </ul>
            </nav>
        </header>
    </div>
</body>

</html>

我如何将a标签的文本移动到导航栏的中间

1 个答案: