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<!DOCTYPE html> <html> <head> <style> #img1 { filter: drop-shadow(-8px -8px 10px gray); } #img2 { filter: drop-shadow(-10px -10px 7px lightblue); } </style> </head> <body> <h1>drop-shadow() 函数</h1> <p>drop-shadow(-8px -8px 10px gray):</p> <img id="img1" src="/i/photo/tulip.jpg" alt="Tulip" width="300" height="300"> <p>drop-shadow(-10px -10px 7px lightblue):</p> <img id="img2" src="/i/photo/tulip.jpg" alt="Tulip" width="300" height="300"> <p>原始图像：</p> <img src="/i/photo/tulip.jpg" alt="Tulip" width="300" height="300"> </body> </html>