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<!DOCTYPE html> <html> <head> <style> div { width: 80px; height: 80px; background-color: pink; } div.a { transform: rotate(atan(500)); } div.b { transform: rotate(atan(1)); } div.c { transform: rotate(atan(0)); } div.d { transform: rotate(atan(-5000)); } </style> </head> <body> <h1>atan() 函数</h1> <p>使用 atan() 旋转元素：</p> <h2>transform: rotate(atan(500)):</h2> <div class="a">Hello World!</div> <br> <h2>transform: rotate(atan(1)):</h2> <div class="b">Hello World!</div> <br> <h2>transform: rotate(atan(0)):</h2> <div class="c">Hello World!</div> <h2>transform: rotate(atan(-5000)):</h2> <div class="d">Hello World!</div> </body> </html>