CSSFlex导航栏hover效果与对齐技巧

<nav class="navbar">
  <a href="#" class="nav-link">首页</a>
  <a href="#" class="nav-link">关于</a>
  <a href="#" class="nav-link">服务</a>
  <a href="#" class="nav-link">联系</a>
</nav>

.navbar {
  display: flex;
  justify-content: center;        /* 水平居中 */
  align-items: center;            /* 垂直居中（在高度固定时有效） */
  background-color: #333;
  padding: 10px;
  gap: 20px;                      /* 设置链接间距 */
}

.nav-link {
  color: white;
  text-decoration: none;
  padding: 10px 15px;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}
<p>.nav-link:hover {
background-color: #555;
color: #fff;
}</p>

.navbar {
  display: flex;
  background-color: #333;
  padding: 10px;
  gap: 10px;
}
<p>.nav-link:first-child {
margin-right: auto; /<em> 将后续元素推到右侧 </em>/
}</p>

@media (max-width: 600px) {
  .navbar {
    flex-direction: column;
    text-align: center;
  }
  .nav-link {
    width: 100%;
    text-align: center;
  }
}