1.第一种,鼠标经过的跟随信息显示:
...
.info
{...}{
position:relative;
background:#fff;
color:#666;
text-decoration:none;
font-size:12px;
width:150px;
text-align:center;
border:1px solid #ccc;
height:25px;
line-height:25px;}/**//*设置链接的属性,一定要设置为relative才能使提示层跟着链接走*/
.info:hover
{...}{
background:#eee;
color:#333;}
.info div
{...}{
display: none
}/**//*设置正常下的span为隐藏状态*/
.info:hover div /**//*设置hover下的span属性为呈现状态,并设置提示层的位置*/
{...}{
display:block;
position:absolute;
top: 30px;
left:60px;
width:130px;
border:1px solid #ff0000;
background:#eee;
color:#000;
padding:5px;
text-align:left;}
style >
鼠标跟随111
这是第一个鼠标经过的效果1111111111111111111 11111111111111111111111111111 div >
a >
鼠标跟随222
这是第二个鼠标经过的效果2222222222222222222 22222222222222222222222222222 div >
a >
鼠标跟随333
这是第三个鼠标经过的效果2222222222222222222 22222222222222222222222222222 div >
a >
body >
html >
执行效果:
2.第二种,歌曲的曲目信息跟随显示效果:
title >
...
style >
head >
最新单曲 h3 >
target ='_blank' > Jacky Cheung
歌名: span > 不后悔 dd >
歌手: span > 张学友 dd >
介绍: span > 1999专辑... dd >
dl >
div >
a >
li >
ul >
body >
html >
执行效果:
3.第三种,鼠标经过图片的高亮显示:
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
鼠标经过高亮显示 title >
...
style >
head >
class ='highlightit' width ="200" height ="200" border ="0" />
a >
body >
html >
执行效果:
鼠标经过前:
鼠标经过后:
4.鼠标经过的区域变色效果:
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
CSS实用鼠标经过变色 title >
head >
...
body {...}{
background: #fff;
font-family: "Lucida Grande", Helvetica, Arial, sans-serif;
font-size: 11px;
}
/**//* The style starts here */
#tabs {...}{padding:0; margin:0 0 0 15px; list-style:none;}
#tabs li {...}{display:inline; padding:0; background:#f8f8f8; float:left; margin-right:35px; position:relative;}
#tabs li.one {...}{width:190px;}
#tabs li.two {...}{width:240px;}
#tabs li.three {...}{width:190px;}
#tabs li a.outer-link {...}{background:#f8f8f8; display:block; width:100%; position:relative;}
#tabs table {...}{border-collapse:collapse; margin:-1px;}
#tabs li b {...}{display:block; background:transparent url(tab_top.gif) no-repeat 0 0; padding:2px 0 0 5px;
height:15px; font-size:0.9em; overflow:hidden;}
#tabs li div {...}{border:1px solid #888; border-width:0 1px 1px 1px; padding:20px 5px 5px 5px;}
#tabs li h3 {...}{padding:0; margin:0; font-family:georgia, serif; font-size:17px;}
#tabs li p {...}{font-family:verdana, serif; font-size:11px; line-height:1.5em;}
#tabs li a {...}{color:#000; text-decoration:none;}
#tabs li a.inner-link {...}{color:#c00; text-decoration:none;}
#tabs li a.inner-link:hover {...}{text-decoration:underline; cursor:point;}
#tabs li.one:hover, #tabs li.one a.outer-link:hover {...}{background:#fef;}
#tabs li.two:hover, #tabs li.two a.outer-link:hover {...}{background:#cff;}
#tabs li.three:hover, #tabs li.three a.outer-link:hover {...}{background:#ffc;}
style >
Firefox b >
Get Firefox with Google Toolbar a >
h3 > The award-winning Web browser just got better. It's free and easy
to use. Join the millions of people worldwide enjoying a better Web experience.
Download Firefox - Free a > p >
div >
li >
Opera b >
Your life at your fingertips h3 > Try Speed Dial? in Opera's newest Web browser,
Opera 9.20. It makes the fastest even faster.
href ="http://www.opera.com/download/get.pl?id=&thanks=true&sub=true" >
Download Opera for Windows a > p >
div >
li >
Explorer b >
Get Internet Explorer 7 for your operating system h3 >
Upgrade with confidence. Get downloads for Internet Explorer 7,
including recommended updates as they become available.
Internet Explorer 7 Download a > p >
div >
li >
ul >
body >
html >
执行效果:
(1)鼠标经过Firefox:
(2)鼠标经过Opera:
(3)鼠标经过Ie Explorer:

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.

The role of HTML is to define the structure and content of a web page through tags and attributes. 1. HTML organizes content through tags such as , making it easy to read and understand. 2. Use semantic tags such as, etc. to enhance accessibility and SEO. 3. Optimizing HTML code can improve web page loading speed and user experience.

HTMLisaspecifictypeofcodefocusedonstructuringwebcontent,while"code"broadlyincludeslanguageslikeJavaScriptandPythonforfunctionality.1)HTMLdefineswebpagestructureusingtags.2)"Code"encompassesawiderrangeoflanguagesforlogicandinteract

HTML, CSS and JavaScript are the three pillars of web development. 1. HTML defines the web page structure and uses tags such as, etc. 2. CSS controls the web page style, using selectors and attributes such as color, font-size, etc. 3. JavaScript realizes dynamic effects and interaction, through event monitoring and DOM operations.

HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.


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