直接在代码里理解 !DOCTYPE htmlhtml lang="en"headmeta charset="UTF-8
直接在代码里理解
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>demo</title> <style type="text/css" media="screen"> .d1{ width:300px; height:150px; border:1px solid #000; padding:10px; /*box-sizing:border-box; 规定宽和高从border开始算起*/ /*box-sizing:content-box; 默认 规定宽和高只是content部分不包孕padding和border*/ } .d2{ width:100%; height:100%; background: red; } </style> </head> <body> <div> <div> </div> </div> </body> </html>
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![[转]Node.js中package.json中^和~的区别](/uploads/allimg/200519/054J34453_lit.png "[转]Node.js中package.json中^和~的区别")