摘要：
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 </head> 7 <body> 8 9 <!--<input type="button" value="我是inpu 阅读全文
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1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 <style type="text/css"> 7 body { 8 font-family: "Helvetica" 阅读全文
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1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 <style> 7 button { 8 margin: 10px; 9 } 10 div { 11 width: 2 阅读全文
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1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 </head> 7 <body> 8 9 <!--<a href="javacript:;">切换</a>--> 10 阅读全文
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1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 </head> 7 <body> 8 9 <div class="box1"> 10 <div class="box2 阅读全文
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1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 <script> 7 //window.onload页面加载完毕以后再执行此代码 8 window.onload = 阅读全文
摘要：
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title></title> 6 <style> 7 * { 8 padding: 0; 9 margin: 0; 10 } 11 .top-banne 阅读全文