<!DOCTYPE html> <html> <head> <link rel="stylesheet" type="text/css" href="designkadai9.css"> <title>design kadai</title> </head> <body> <h2>課題1</h2> <p> <script type="text/javascript"> <!-- document.write("こんにちは!") // --> </script> </p> <h2>課題2</h2> <p> <script type="text/javascript" src="designkadai9.js"> </script> </p> <h2>課題3</h2> <p>鎌倉幕府は<span class="check">1192</span>年、</p> <h2>課題4</h2> <p>鎌倉幕府は<span class="check" id="box" onclick="red();">1192</span>年、</p> </body> </html>