html - 菜单对齐居中和 float 问题

Question

我的站点标题和导航功能如我所愿。但链接和 Logo 的布局未对齐。

它应该如下所示。

link--link--link-----logo-----link--link--dropdown

但是显示如下

link--link--logo--------------dropdown--link--link

Logo 不会居中居中..并且下拉列表显示在右侧的链接之前。

#siteHeader {
  max-width: 1600px;
  padding-top: 15px;
  height: 93px;
  font-size: 12px;
  text-transform: uppercase;
  background-color: #000;
  margin-left: auto;
  margin-right: auto;
  border-top: 1px solid #d7d5d5;
}
#siteHeader a {
  text-decoration: none;
}
.logo {
  display: block;
  height: 55px;
  width: auto;
  float: left;
}
.left {
  float: left;
}
.right {
  float: right;
}
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  width: auto;
  display: block;
  float: left;
  clear: right;
}
li {
  float: left;
}
li a {
  display: block;
  color: white;
  text-align: center;
  padding: 6px 16px;
  text-decoration: none;
  float: left;
}
li a:hover {
  background-color: #000;
}
.dropbtn {
  background-color: #000;
  color: white;
  padding-top: 6px;
  padding-bottom: 25px;
  border: none;
  cursor: pointer;
  min-width: 100px;
  text-transform: uppercase;
}
.dropdown {
  position: relative;
  display: inline-block;
  float: right;
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #434343;
  min-width: 185px;
  right: 0;
}
.dropdown-content a {
  color: white;
  padding: 13px 16px;
  text-decoration: none;
  display: block;
}
.dropdown-content a:hover {
  background-color: #000000
}
.dropdown:hover .dropdown-content {
  display: block;
  float: left;
}
.dropdown:hover .dropbtn {
  background-color: #434343;
  color: white;
}

<div id="siteHeader">
  <div class="container-fluid normalize">
    <div class="nav">
      <ul class="left">
        <li><a href="#home">Link</a>
        </li>
        <li><a href="#news">Link</a>
        </li>
        <li><a href="#news">Link</a>
        </li>
      </ul>
      <img src="content/images/logo.png" class="logo">
      <ul class="right">
        <li><a href="#home">Link</a>
        </li>
        <li><a href="#news">Link</a>
        </li>
      </ul>
      <div class="dropdown">
        <button class="dropbtn">Dropdown <span>+</span>
        </button>
        <div class="dropdown-content">
          <a href="#">Link 1</a> 
          <a href="#">Link 2</a> 
          <a href="#">Link 3</a> 
        </div>
      </div>
    </div>
  </div>
</div>

Answer 1

Flexbox 看起来是个合理的解决方案。我删除了所有 float 属性，添加了 div 容器来包装出现在右侧的元素，并将 flexbox 属性添加到 nav 元素。

#siteHeader {
  max-width: 1600px;
  padding-top: 15px;
  height: 93px;
  font-size: 12px;
  text-transform: uppercase;
  background-color: #000;
  margin-left: auto;
  margin-right: auto;
  border-top: 1px solid #d7d5d5;
}
#siteHeader a {
  text-decoration: none;
}
.logo {
  display: block;
  height: 55px;
  width: auto;
  float: left;
}

.nav {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.right, .left{
  display: inline-flex;
}
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  width: auto;
}
li {
  float: left;
}
li a {
  display: block;
  color: white;
  text-align: center;
  padding: 6px 16px;
  text-decoration: none;
  float: left;
}
li a:hover {
  background-color: #000;
}
.dropbtn {
  background-color: #000;
  color: white;
  padding-top: 6px;
  padding-bottom: 25px;
  border: none;
  cursor: pointer;
  min-width: 100px;
  text-transform: uppercase;
}
.dropdown {
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #434343;
  min-width: 185px;
  right: 9px;
}
.dropdown-content a {
  color: white;
  padding: 13px 16px;
  text-decoration: none;
  display: block;
}
.dropdown-content a:hover {
  background-color: #000000
}
.dropdown:hover .dropdown-content {
  display: block;
  float: left;
}
.dropdown:hover .dropbtn {
  background-color: #434343;
  color: white;
}

<div id="siteHeader">
  <div class="container-fluid normalize">
    <div class="nav">
      <ul class="left">
        <li><a href="#home">Link</a>
        </li>
        <li><a href="#news">Link</a>
        </li>
        <li><a href="#news">Link</a>
        </li>
      </ul>
      <img src="content/images/logo.png" class="logo">
      <div class="right">
        <ul>
          <li><a href="#home">Link</a>
          </li>
          <li><a href="#news">Link</a>
          </li>
        </ul>
        <div class="dropdown">
          <button class="dropbtn">Dropdown <span>+</span>
          </button>
          <div class="dropdown-content">
            <a href="#">Link 1</a> 
            <a href="#">Link 2</a> 
            <a href="#">Link 3</a> 
          </div>
        </div>        
      </div>

    </div>
  </div>
</div>