设计导航栏,如何用css增加悬停字段的大小?

Designing a navbar, how to increase the size of the hovered field with css?

我的 header 看起来像这样:

如果我将鼠标悬停在它上面,它会稍微增加,变成这样:

需要在 CSS 中更改什么 属性 以便 on-hovering 它占据蓝色条的整个高度?我尝试使用 width,因为我使用的是 border-box,我认为蓝色条的大小不会改变,但它确实改变了。

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  background-image: url(background.jpg);
  background-size: cover;
  background-position: center;
  font-family: sans-serif;
}

.menu-bar {
  background: rgb(3, 50, 112);
  text-align: center;
}

.menu-bar ul {
  display: inline-flex;
  list-style: none;
  color: #fff;
}

.menu-bar ul li {
  width: 120px;
  margin: 15px;
  padding: 0px;
}

.menu-bar ul li a {
  text-decoration: none;
  color: white;
}

.active,
.menu-bar ul li:hover {
  background-color: #2bab0b;
  border-radius: 3px;
}
<link rel="stylesheet1" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.1.1/css/fontawesome.min.css">


<div class="menu-bar">
  <ul>
    <li class="active"><a href="#">Home</a></li>
    <li><a href="#">About us</a></li>
    <li><a href="#">Services</a></li>
    <li><a href="#">Investors</a></li>
    <li><a href="#">Pricing</a></li>
    <li><a href="#">Training </a></li>
    <li><a href="#">Contact</a></li>
  </ul>

</div>


编辑:

正如评论中所建议的那样。我将 height:30px; 包含在悬停 class 中,因为将其包含在 menu-bar class 中似乎不起作用。然而,似乎正在发生的是绿色突出显示的大小在增加,而蓝色条的大小:

这就是您想要的效果吗?请参阅下面的代码片段。我从 li 中删除了边距并在 a 上添加了一个填充。

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  background-image: url(background.jpg);
  background-size: cover;
  background-position: center;
  font-family: sans-serif;
}

.menu-bar {
  background: rgb(3, 50, 112);
  text-align: center;
}
.menu-bar ul {
  display: inline-flex;
  list-style: none;
  color: #fff;
    
}

.menu-bar ul li {
  width: 120px;
}

.menu-bar ul li a {
  text-decoration: none;
  color: white;
  display:block;
  padding:15px;
 
}
.active,
.menu-bar ul li:hover {
  background-color: #2bab0b;
  border-radius: 3px;

}
<div class="menu-bar">
  <ul>
    <li class="active"><a href="#">Home</a></li>
    <li><a href="#">About us</a></li>
    <li><a href="#">Services</a></li>
    <li><a href="#">Investors</a></li>
    <li><a href="#">Pricing</a></li>
    <li><a href="#">Training </a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</div>

删除 li 的边距。

*
{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body
{
    background-image: url(background.jpg);
    background-size: cover;
    background-position : center;
    
    font-family: sans-serif;
}

.menu-bar
{
    background: rgb(3, 50, 112);
    text-align: center;
}


ul {
  display: inline-flex;
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

li {
  float: left;
  width: 120px;
  padding: 0px;    
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

li a:hover:not(.active) {
  background-color: #2bab0b;
  border-radius: 3px;  
}

.active {
  background-color: #2bab0b;
  border-radius: 3px;  
}
<html>
    <head> 
        <title> Title of page    </title>
        <link rel="stylesheet" href="style.css">
        <link rel="stylesheet1" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.1.1/css/fontawesome.min.css">
    </head>


    <body> 
        <div class="menu-bar">
        <ul>
            <li class="active"><a href="#">Home</a></li>
            <li><a href="#">About us</a></li>
            <li><a href="#">Services</a></li>
            <li><a href="#">Investors</a></li>
            <li><a href="#">Pricing</a></li>
            <li><a href="#">Training </a></li>
            <li><a href="#">Contact</a></li>
        </ul>

        </div>
    </body>
</html>

这就是您要找的。我 修改了 您的代码并在 hovering 上添加了一些 transition。看下面的代码:

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  background-image: url(background.jpg);
  background-size: cover;
  background-position: center;
  font-family: sans-serif;
}

.menu-bar {
  background: rgb(3, 50, 112);
  text-align: center;
}

.menu-bar ul {
  display: flex;
  flex-direction: row;
  list-style: none;
  color: #fff;
}

.menu-bar ul li {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: all 0.4s ease;
}

.menu-bar:hover li {
  padding: 14px 12px;
  transition: all 0.4s ease;
}

.menu-bar ul li a {
  text-decoration: none;
  color: white;
}

.active,
.menu-bar ul li:hover {
  background-color: #2bab0b;
  border-radius: 3px;
}
<link rel="stylesheet1" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.1.1/css/fontawesome.min.css">


<div class="menu-bar">
  <ul>
    <li class="active"><a href="#">Home</a></li>
    <li><a href="#">About us</a></li>
    <li><a href="#">Services</a></li>
    <li><a href="#">Investors</a></li>
    <li><a href="#">Pricing</a></li>
    <li><a href="#">Training </a></li>
    <li><a href="#">Contact</a></li>
  </ul>

</div>