Home > Developer > Web Develop

Css Sprite (Sprite chart, sprite chart) < image flattening Technology >

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

One, the sprite diagram usage scene:

Second, Css Sprite (merit)
    1. Reduce the byte of the picture.
    2. Reduce Web page HTTP requests, which greatly improve the performance of the page.
    3. Solve the web designer in the image naming problems, just a set of pictures named on it, do not need to name every small element, thus improving the production efficiency of the page.
    4. Changing style is convenient, just need to change the color or style of the picture on one or fewer pictures, the whole page style can be changed. More convenient to maintain.
Three, the realization principle CSS Background-position

Controls the area range size that a layer can display,
Slide the background image through a window
Instance:

The code is as follows:

<!doctype html>"Utf-8"/> <title>background-Position<</title> <link rel="Stylesheet" href="Index.css"/> class="Oo span1" ></span> <spanclass="Oo span2" ></span> <spanclass="Oo span3" ></span> <spanclass="pp Span4" ></span> <spanclass="ll Span5" ></span> <spanclass="HH span6" ></span> </body>0AutoText-align:center;}. oo{Display:block;Width43px;Height44px;Background:url (images/img_navsprites_hover.gif) no-repeat; Margin20pxAuto;}. span1{background-Position00;Position:absolute; Top0px;}. span2{background-Position-47px0;Position:absolute; Top0px; Left60px;}. span3{background-Position-94px0;Position:absolute; Top0px; Left120px;}. span1:hover{background-Position0-45px;}. span2:hover{background-Position-47px-45px;}. span3:hover{background-Position-94px-45px;}. pp{Display:block;Width38px;Height38px;Background:url (images/pwd-icons-New.png) No-repeat; Margin20pxAuto;}. span4{background-Position-48px-96px;}. ll{Display:block;Width24px;Height26px;background:url (Images/tb1eixtxlth8kjjy0fixxcrsxxa-24< Span class= "Hljs-number" >-595.png) no-repeat; Margin:20px auto;}. span5{background-position:0 Span class= "Hljs-number" >-483PX;}. hh{display:block; width:18PX; height:18PX; background:url (images/toolbars.png) no-repeat; Margin:20px auto;}. span6{background-position:- 95px -211px;

**background-position:npx npx;
(The first value is the left and right, when you need to turn the background map to a positive value, negative to the left to the same time the background map is transferred up and down with a negative value, the next is positive)**
<2> as follows:
(This is the original)

(This is the image after the election)

The first picture is the conversion of the original image and the Dark One, the lock of the second picture, the train of the four picture, and the villain of the figure.

Just into the front end write bad forgive!!! (^o^)/~

Css Sprite (Sprite chart, sprite chart) < image flattening Technology >

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:
sprite class sprite coding sprite maker program sprite animator online android sprite animation sprite maker unity unity sprite animation

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