Web Front-endHTML TutorialIt's a very simple problem, please help me solve it, thank you. _html/css_WEB-ITnoseIt's a very simple problem, please help me solve it, thank you. _html/css_WEB-ITnose
I want to use CSS to set the background of a button:
That is, the background is picture 1.png when not clicked, and the background picture is 2.png after clicking (that is: when selected).
Is there any good solution? Thank you.
I found a solution online like this:
<script> <br /> var Arr=new Array( "1.jpg ", "2.jpg ") <br /> var i=0 <br /> function fun(){ <br /> aa.style.backgroundImage= "url( " Arr[i] ") " <br /> i=i 1 <br /> if(i> =2)i=0 <br /> } <br /> </script>
| aaaa |
Reply to discussion (solution)
Use div instead of button
Demonstration effect: http://job.dingso.com/crm/mail.php I wrote a button Style
Yes, use DIV, and this does not require JS to control at all, it can be written directly with CSS www.seo7ye.com
Yes, use DIV, and this does not require JS to control at all, it can be written directly with CSS www.seo7ye.com
Please give me some advice:
How to control without JS? Write?
I don’t need to teach you how to define two classes bg1 bg2
First of all, point out a few mistakes. There are many unnecessary spaces in the original poster’s code, such as id="aa " , i> =2, etc. This is a reason why the program cannot run. In addition, aa.style.backgroundImage, aa is not defined, and there are no other big problems. I have posted the detailed code below and put it in the same folder. Just two pictures can be run
<!DOCTYPE html><html><head><script> var Arr=new Array( "1.jpg", "2.jpg") var i=0 ;function fun(){ var aa=document.getElementById("aa"); aa.style.background="url("+Arr[i]+ ")"; i=i+1; if(i>=2) i=0;}</script> </head><body><table width=500 height=100 id= "aa" background="1.jpg" > <tr> <td> aaaa </td> </tr> </table> <input type="submit" value="Button" id="bb" onClick="fun();"/></body></html>
How to define two classes bg1 bg2 You don’t need me to teach you
Thank you, yes, this method compares good.
HTML, CSS, and JavaScript: Examples and Practical ApplicationsMay 09, 2025 am 12:01 AMThe roles of HTML, CSS and JavaScript in web development are: 1. HTML is used to build web page structure; 2. CSS is used to beautify the appearance of web pages; 3. JavaScript is used to achieve dynamic interaction. Through tags, styles and scripts, these three together build the core functions of modern web pages.
How do you set the lang attribute on the tag? Why is this important?May 08, 2025 am 12:03 AMSetting the lang attributes of a tag is a key step in optimizing web accessibility and SEO. 1) Set the lang attribute in the tag, such as. 2) In multilingual content, set lang attributes for different language parts, such as. 3) Use language codes that comply with ISO639-1 standards, such as "en", "fr", "zh", etc. Correctly setting the lang attribute can improve the accessibility of web pages and search engine rankings.
What is the purpose of HTML attributes?May 07, 2025 am 12:01 AMHTMLattributesareessentialforenhancingwebelements'functionalityandappearance.Theyaddinformationtodefinebehavior,appearance,andinteraction,makingwebsitesinteractive,responsive,andvisuallyappealing.Attributeslikesrc,href,class,type,anddisabledtransform
How do you create a list in HTML?May 06, 2025 am 12:01 AMTocreatealistinHTML,useforunorderedlistsandfororderedlists:1)Forunorderedlists,wrapitemsinanduseforeachitem,renderingasabulletedlist.2)Fororderedlists,useandfornumberedlists,customizablewiththetypeattributefordifferentnumberingstyles.
HTML in Action: Examples of Website StructureMay 05, 2025 am 12:03 AMHTML is used to build websites with clear structure. 1) Use tags such as, and define the website structure. 2) Examples show the structure of blogs and e-commerce websites. 3) Avoid common mistakes such as incorrect label nesting. 4) Optimize performance by reducing HTTP requests and using semantic tags.
How do you insert an image into an HTML page?May 04, 2025 am 12:02 AMToinsertanimageintoanHTMLpage,usethetagwithsrcandaltattributes.1)UsealttextforaccessibilityandSEO.2)Implementsrcsetforresponsiveimages.3)Applylazyloadingwithloading="lazy"tooptimizeperformance.4)OptimizeimagesusingtoolslikeImageOptimtoreduc
HTML's Purpose: Enabling Web Browsers to Display ContentMay 03, 2025 am 12:03 AMThe core purpose of HTML is to enable the browser to understand and display web content. 1. HTML defines the web page structure and content through tags, such as, to, etc. 2. HTML5 enhances multimedia support and introduces and tags. 3.HTML provides form elements to support user interaction. 4. Optimizing HTML code can improve web page performance, such as reducing HTTP requests and compressing HTML.
Why are HTML tags important for web development?May 02, 2025 am 12:03 AMHTMLtagsareessentialforwebdevelopmentastheystructureandenhancewebpages.1)Theydefinelayout,semantics,andinteractivity.2)SemantictagsimproveaccessibilityandSEO.3)Properuseoftagscanoptimizeperformanceandensurecross-browsercompatibility.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
Atom editor mac version download
The most popular open source editor
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
SublimeText3 Mac version
God-level code editing software (SublimeText3)
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
