jquery+css3 makes navigation of live broadcast platform-JS Tutorial-php.cn

This time I will bring you jquery+css3 to make the navigation of the live broadcast platform. jquery+css3 to make the navigation of the live broadcast platform.What are the precautions?Here are the actual cases, let’s take a look.

Implementation principle

Please see the following source code

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The code corresponding to the green box is class p of ph-nav_shadow.

Use jquery to change the left and width values of the mask layer (.ph-nav_shadow), and add css3 animation effects to realize the animation of the green box.

Call jquery to add and delete the li tag class to change the text color. (.ph-nav_item--current).

Specific implementation

Write html code

  
  
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Write css code

.header_nav{ width: 592px; height: 50px; position: relative; } .header_nav_shadow{ position: absolute; top: 0; left: 0; bottom: 0; width: 72px; background: #F29400; transition: all ease-in-out .3s; z-index: 1; } .header_nav ul li{ display: block; float: left; overflow: hidden; height: 50px; line-height: 50px; transition: all ease-in-out .3s; position: relative; z-index: 2; } .header_nav_li-hover a{ color: #fff; } .header_nav ul li a{ display: block; padding: 0 20px; height: 50px; line-height: 50px; transition: all ease-in-out .3s; }

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Write js code (main)

$(document).ready(function() { $(".header_nav ul li").hover(function() { var change = getLiData($(this)); $(".header_nav_shadow").css('left',change[0]).width(change[1]); $(".header_nav ul").children("li:first-child").removeClass("header_nav_li-hover"); $(this).addClass("header_nav_li-hover"); }, function() { $(".header_nav_shadow").css('left',0).width('72'); $(this).removeClass("header_nav_li-hover"); $(".header_nav ul").children("li:first-child").addClass("header_nav_li-hover"); }); }); // 根据this li 获取需要改变的长度和偏移量 function getLiData(li){ var left = 0; for(let i=0;i
        
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I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!