How to realize the special effect of carousel with native js

This article mainly shows you "how to achieve special effects in native js". The content is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "how to achieve special effects in native js".

First, the css code

A {text-decoration:none;color:#3DBBF5;} * {margin: 0; padding: 0;} .wrapper {width: 400px; height: 300px; margin: 100px auto;} # lunbo {position: relative; overflow: hidden;} # list {position: relative; white-space: nowrap / / this block is simulated with line elements, so this attribute is used. Block elements can modify the block} # list span {display: inline-block; width: 400px; height: 300px; text-align: center; line-height: 300px; font-weight: bold; font-size: 100px; color: # fff;} # buttons {position: absolute; bottom: 0; text-align: center Width: 100%; height: 40px; line-height: 40px;} # buttons span {display: inline-block; width: 15px; height: 5px; background: # fff; margin: 010px; cursor: pointer; transition: all .5s;} # buttons span.on {height: 20px;} .arrow {position: absolute; top: 50%; transform: translateY (- 50%) Font-size: 80px; font-weight: bold; color: # fff; opacity: .3; transition: all .5s;} .wrapper: hover .arrow {opacity: 1;} # prev {left: 10px;} # next {right: 10px;}

Then the HTML code

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Finally, js code

_ window.onload=function () {var lunBo = document.getElementById ("lunbo"); var list = document.getElementById ("list"); var btn = document.getElementById ("buttons"). GetElementsByTagName ('span'); var prev = document.getElementById ("prev"); var next = document.getElementById (' next'); var interval = 3000; var timer; var index = 1; var animated = false; for