html - CSS，从新网页开始，试图让导航栏位于中间，宽度为 95%(每边 2.5% 空闲)

Question

我试图让这段代码在中间和 95%(每边 2.5% 空闲)处显示我的导航栏。我在互联网上找到了一些方法，但它们会要求我使用不同的样式，我想保持不变。

#nav ul {
  position: fixed;
  top: 5px;
  width: 100%;
  list-style-type: none;
  margin: 0;
  margin-left: 10%;
  padding: 0;
  overflow: hidden;
  background-color: #ffffff;
}

#nav li {
  float: left;
}

#nav li a {
  display: block;
  color: #0066cc;
  text-align: center;
  padding: 10px 20px;
  text-decoration: none;
}

#nav li a:hover {
  background-color: #111;
}

#nav .active {
  background-color: #ffffff;
  border-top-width: 5px;
  border-top-style: solid;
  border-top-color: #0066cc;
  border-bottom-width: 5px;
  border-bottom-style: solid;
  border-bottom-color: #0066cc;
}

#nav .inactive {
  border-width: 5px;
  border-top-style: solid;
  border-top-color: #ffffff;
  border-top-color: #0066cc;
  border-bottom-width: 5px;
  border-bottom-style: solid;
  border-bottom-color: #0066cc;
}

Html part:

  <div id="nav">
    <ul>
      <li><a class="active" href="../HTML/Home.html">Home</a></li>
      <li><a class="inactive" href="../HTML/Shop.html">Shop</a></li>
      <li><a class="inactive" href="../HTML/SocialNews.html">Social News</a></li>
      <li><a class="inactive" href="../HTML/Gallary.html">Gallary</a></li>
      <li><a class="inactive" href="../HTML/CustomerReviews.html">Customer Reviews</a></li>
      <li><a class="inactive" href="../HTML/Sponsorship.html">Sponsorship</a></li>
      <li><a class="inactive" href="../HTML/Contact.html">Contact</a></li>
      <li><a class="inactive" href="../HTML/Cart.html">Cart</a></li>
    </ul>
  </div>

Answer 1

使用宽度:95%；左:50%； transform: translateX(-50%); 使菜单宽度为 95% 并居中。

然后将 display: flex 添加到菜单并将 flex: 1 0 0 添加到 li 以拉伸(stretch)这些元素将填满菜单。

#nav ul {
  position: fixed;
  top: 5px;
  list-style-type: none;
  padding: 0;
  overflow: hidden;
  background-color: #ffffff;
  width: 95%;
  display: flex;
  left: 50%;
  transform: translateX(-50%);
}

#nav li {
  flex: 1 0 0;
}

#nav li a {
  display: block;
  color: #0066cc;
  text-align: center;
  padding: 10px 20px;
  text-decoration: none;
  height: 100%;
  box-sizing: border-box;
}

#nav li a:hover {
  background-color: #111;
}

#nav .active {
  background-color: #ffffff;
  border-top-width: 5px;
  border-top-style: solid;
  border-top-color: #0066cc;
  border-bottom-width: 5px;
  border-bottom-style: solid;
  border-bottom-color: #0066cc;
}

#nav .inactive {
  border-width: 5px;
  border-top-style: solid;
  border-top-color: #ffffff;
  border-top-color: #0066cc;
  border-bottom-width: 5px;
  border-bottom-style: solid;
  border-bottom-color: #0066cc;
}

<div id="nav">
    <ul>
      <li><a class="active" href="../HTML/Home.html">Home</a></li>
      <li><a class="inactive" href="../HTML/Shop.html">Shop</a></li>
      <li><a class="inactive" href="../HTML/SocialNews.html">Social News</a></li>
      <li><a class="inactive" href="../HTML/Gallary.html">Gallary</a></li>
      <li><a class="inactive" href="../HTML/CustomerReviews.html">Customer Reviews</a></li>
      <li><a class="inactive" href="../HTML/Sponsorship.html">Sponsorship</a></li>
      <li><a class="inactive" href="../HTML/Contact.html">Contact</a></li>
      <li><a class="inactive" href="../HTML/Cart.html">Cart</a></li>
    </ul>
  </div>