<!DOCTYPE html><html><head><meta charset="utf-8" /><title>HTML5</title><style type="text/css">#a3{width:50px; height:50px; background-color:#000066;margin:200px 0 0 200px;color:#FFF;}@-webkit-keyframes aa1{ 0%{-webkit-transform:rotate(0deg) scale(1,1) skew(0deg,0deg);opacity:1;} 50%{-webkit-transform:rotate(180deg) scale(2,2) skew(45deg,0deg);opacity:0;} 100%{-webkit-transform:rotate(360deg) scale(1,1) skew(0deg,0deg);opacity:1;}}@-moz-keyframes aa1{ 0%{-moz-transform:rotate(0deg) scale(1,1) skew(0deg,0deg);opacity:1;} 50%{-moz-transform:rotate(180deg) scale(2,2) skew(45deg,0deg);opacity:0;} 100%{-moz-transform:rotate(360deg) scale(1,1) skew(0deg,0deg);opacity:1;}}.a3:hover{ -webkit-animation-name:aa1; -webkit-animation-duration:5s; -webkit-animation-timing-function:linear; -webkit-animation-iteration-count:infinite; -moz-animation-name:aa1; -moz-animation-duration:5s; -moz-animation-timing-function:linear; -moz-animation-iteration-count:infinite;}.a5{ -webkit-animation-name:aa1; -webkit-animation-duration:5s; -webkit-animation-timing-function:linear; -webkit-animation-iteration-count:infinite; -moz-animation-name:aa1; -moz-animation-duration:5s; -moz-animation-timing-function:linear; -moz-animation-iteration-count:infinite;}</style></head><body><div id="a3">123456</div></body><script>var a = document.getElementById("a3");a.addEventListener("click",function(){ //alert("a5"); //a.style.cssText = "-webkit-animation-name:aa1;-webkit-animation-duration:5s;-webkit-animation-timing-function:linear;-webkit-animation-iteration-count:infinite;"; a.className = "a5";});</script></html>
这段代码的意义是,当点击屏幕上的小方块(DIV)时,小方块会自动旋转和拉伸并改变透明度,这段代码在firefox里面运行正常,但是在chrome里运行出现问题:
1.只有透明度在转化,旋转和拉伸没有;
2.当前面加一行alert的代码时,点击确定关掉弹出窗口时,能正常运行;
chrome版本 22.0.1229.96
请问各位大神这是什么个情况,有什么解决办法,总不能无端的加个alert吧……
回复讨论(解决方案)
。。。我表示all OK LZ赶紧重装吧
额。。。你的JS咋都写到body外面去了 太嚣张了 难怪出错

The future of HTML will develop in a more semantic, functional and modular direction. 1) Semanticization will make the tag describe the content more clearly, improving SEO and barrier-free access. 2) Functionalization will introduce new elements and attributes to meet user needs. 3) Modularity will support component development and improve code reusability.

HTMLattributesarecrucialinwebdevelopmentforcontrollingbehavior,appearance,andfunctionality.Theyenhanceinteractivity,accessibility,andSEO.Forexample,thesrcattributeintagsimpactsSEO,whileonclickintagsaddsinteractivity.Touseattributeseffectively:1)Usese

The alt attribute is an important part of the tag in HTML and is used to provide alternative text for images. 1. When the image cannot be loaded, the text in the alt attribute will be displayed to improve the user experience. 2. Screen readers use the alt attribute to help visually impaired users understand the content of the picture. 3. Search engines index text in the alt attribute to improve the SEO ranking of web pages.

The 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.

Setting 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.

HTMLattributesareessentialforenhancingwebelements'functionalityandappearance.Theyaddinformationtodefinebehavior,appearance,andinteraction,makingwebsitesinteractive,responsive,andvisuallyappealing.Attributeslikesrc,href,class,type,anddisabledtransform

TocreatealistinHTML,useforunorderedlistsandfororderedlists:1)Forunorderedlists,wrapitemsinanduseforeachitem,renderingasabulletedlist.2)Fororderedlists,useandfornumberedlists,customizablewiththetypeattributefordifferentnumberingstyles.

HTML 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.


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