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<!DOCTYPE html> <html> <head> <title>HTML5, CSS3 and JavaScript demo</title> </head> <body> <input id="btn" type="checkbox"><!--本題ã¨ã¯ç„¡é–¢ä¿‚--> <label for="btn" id="lbl"></label><!--本題ã¨ã¯ç„¡é–¢ä¿‚--> <div id="now"></div><!--本題ã¨ã¯ç„¡é–¢ä¿‚--> <!--ã“ã“--> <div id="test"> <img src="http://placehold.jp/150x150.png"> </div> </body> </html>
#test::after{ content: "ã‚ã„ã†ãˆãŠ"; } #btn:checked ~ #test::after{ content: ""; } /*********以下,本題ã¨ç„¡é–¢ä¿‚*********/ #test{ border: 1px solid #ddd; margin: 10px; padding: 10px; } #test::after{ display: inline-block; } #btn{ display: none; } #lbl{ display: inline-block; margin: 10px; border: 1px solid gray; border-radius: 5px; padding: 10px; user-select: none; } #lbl::before{ content: "SP版ã¸åˆ‡ã‚Šæ›¿ãˆ"; } #btn:checked ~ #lbl::before{ content: "PC版ã¸åˆ‡ã‚Šæ›¿ãˆ"; } #now::before{ content: "PC版表示↓"; } #btn:checked ~ #now::before{ content: "SP版表示↓"; }
// Write JavaScript here