css implementation menu

This article introduces how to use CSS to implement a simple menu. CSS (Cascading Style Sheets) is a style language that is laid out and displayed on web pages. Its main function is to add style and layout to HTML documents. In this menu example, we will use CSS to control the style and layout of the menu.

First, we need to establish the HTML structure, including a

element and several
• elements. These elements will make up our menu, with each
• element being a menu item. For example:

  <ul>
    <li><a href="#">首页</a></li>
    <li><a href="#">产品</a></li>
    <li><a href="#">关于我们</a></li>
    <li><a href="#">联系我们</a></li>
  </ul>

  The above HTML structure will generate the following menu:

  

  Next, we use CSS to add styles to the menu.

  First, we set some basic styles for the

  element:

  ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
  }

  This will make the menu list not display the default dots, and remove the default margins and padding distance.

  Next, we add some styles to each menu item and arrange them on a line using the float attribute:

  li {
    float: left;
  }
  
  li a {
    display: block;
    padding: 8px 16px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
  }

  This will make each menu item line up on a line in the menu bar , and added styles, for example, turning the link into a block element, setting padding, text decorations, and colors and fonts.

  Finally, we will apply some styles to the menu bar:

  nav {
    background-color: #f1f1f1;
  }
  
  nav ul {
    overflow: auto;
    width: 100%;
  }
  
  nav li {
    float: left;
  }
  
  nav a {
    display: block;
    padding: 8px 16px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
  }
  
  nav a:hover {
    background-color: #ddd;
    color: #333;
  }

  We use the background-color property to set the background color for the menu bar, and the overflow property to make the menu bar scrollable. Additionally, we set the background and hover styles of the menu items.

  Finally, the menu implemented by our CSS is as follows:

  

  Through the above steps, we have implemented a simple CSS menu. This method can Used in different projects, personalized modifications can be applied to various types of websites. During the implementation process, you need to understand the relevant properties and functions of CSS and use them flexibly to achieve the desired effect of the menu.

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