body {font-family: Arial, Helvetica, sans-serif; margin: 0; padding: 0; }
header {background: green; color: white; font-size: 3em; padding: 1em; }
footer {background: #555; color: white; padding: 1em; clear: both; }
menu {background: #ccc; margin: 0; width: 200px; padding: 0; float: left;    }
menu ul {margin: 0; padding: 0; }
menu li {list-style-type: none; }
menu li a {text-decoration: none; color: #333; display: block; padding: 1em; border-bottom: 1px solid #333; }
menu li a:hover {background: #eee; color: orange; border-color: orange; }
main {width: 700px; float: left; margin-left: 25px; text-align: justify; line-height: 1.4em; }

main img {float: left; margin-right: 1em; }