<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <meta name="keywords"content="html,css,javascript"/> <script type="text/javascript" src=""></script> <title>CSSの練習</title> <style type="text/css"> body{ background-color:#dddddd
