Home > Developer > Mobile Develop

The page has a div 100*100 color yellow press the keyboard and the left and right keys can operate div Mobile CTRL + keyboard up and down can zoom out CTRL + keyboard around keys can be randomly changed color

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞ 

1<body>2<div id= "W" >3<div class= "n" > Press the UP key to move up </div>4<div class= "n" > Press the key to move down </div>5<div class= "n" > Left click to move </div>6<div class= "n" > right-click to move right </div>7<div class= "n" >ctrl+ keyboard key to zoom in </div>8<div class= "n" >ctrl+ keyboard down button to zoom out </div>9<div class= "n" >ctrl+ keyboard keys can be randomly changed color </div>Ten<div id= "box" style= "Width:100px;height:100px;background-color: #ff0;p osition:absolute;left:100px;top:100px; Z-index:-1 "></div> One</div> A<script> -     varbox = document.getElementById (' box '); -Document.body.addEventListener (' KeyDown ',function(e) { the         Switch(e.keycode) { -              Case37: -                 if(e.ctrlkey) { -Box.style.backgroundColor = ' # ' + (Math.random (). toString ()). substr (-6); +}Else { -Box.style.left = parseint (box.style.left)-6 + ' px '; +                 } A                  Break; at              Case39: -                 if(e.ctrlkey) { -Box.style.backgroundColor = ' # ' + (Math.random (). toString ()). substr (-6); -}Else { -Box.style.left = parseint (box.style.left) + 6 + ' px '; -                 } in                  Break; -              Case38: toBox.style.top = parseint (box.style.top)-6 + ' px '; +                 if(e.ctrlkey) { -Box.style.width = parseint (box.style.width) + 4 + ' px '; theBox.style.left = parseint (box.style.left)-2 + ' px '; *Box.style.height = parseint (box.style.height) + 4 + ' px '; $Box.style.top = parseint (box.style.top) + 4 + ' px ';Panax Notoginseng                 } -                  Break; the              Case40: +Box.style.top = parseint (box.style.top) + 6 + ' px '; A                 if(e.ctrlkey) { theBox.style.width = parseint (box.style.width)-4 + ' px '; +Box.style.left = parseint (box.style.left) + 2 + ' px '; -Box.style.height = parseint (box.style.height)-4 + ' px '; $Box.style.top = parseint (box.style.top)-4 + ' px '; $                 } -                  Break; -         } the Console.log (e.keycode); -     })Wuyi</script> the</body>

The page has a div 100*100 color yellow press the keyboard and the left and right keys can operate div Mobile CTRL + keyboard up and down can zoom out CTRL + keyboard around keys can be randomly changed color

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
left handed wireless keyboard and mouse string and can dell laptop keyboard light up keys wireless keyboard chiclet keys computer keyboard f keys keyboard chiclet keys keyboard old typewriter keys
Related Article
[Android Security] Dex File Format Analysis
Android TextView: "Do not concatenate text displayed with Set...
Server based PHP codeigniter,android based on volley for mult...
Several ways iOS intercepts redirect requests (302)

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More