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html method to implement secondary tab: first open the software that writes web page code, and create a new html web page file, write html code in the body; then write in the [
The operating environment of this tutorial: windows7 system, html5 version, DELL G3 computer. This method is suitable for all brands of computers.
html Method to implement secondary tab:
1. Open the software that writes web page code, and create a new html web page file, and write the html code in the body :
<body> <div class="a"> <ul> <li> <a href="#">一级</a> <ul class="d"> <li><a href="#">二级</a></li> <li><a href="#">二级</a></li> </ul> </li> </ul> </div> </body>
2. Write the css code in <style></style>:
<style type="text/css">
.a ul li ul{
display: none;/*将 二级 菜单隐藏起来*/
}
.a ul li:hover ul{
display: block;/*当鼠标移动到一级标签后，ul即二级菜单显示出来*/
}
</style>3. After saving and running, as shown in the figure, when the mouse is placed After the previous level menu is displayed, the second level is displayed. Complete all steps
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