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Html+CSS 画出三角形(HTML+CSS百例练习)

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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style type="text/css"> .box{ width: 0px; height: 0px; background-color: white; /* border-bottom: 50px solid transparent; border-left: 50px solid transparent; border-right: 50px solid transparent; */ border: 50px solid transparent; border-top: 50px solid blue; } </style> </head> <body> <div class="box"></div> </body> </html> <!DOCTYPE html> <html lang="en"> <head> <meta cha



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