h1 { font-style: normal; font-weight: normal; font-size: 200%; }
h2 { font-style: normal; font-weight: normal; margin-bottom: 20px; font-size: 150%; }
h3 { text-align: justify; font-style: normal; font-weight: normal; margin-bottom: 20px; font-size: 100%; }
h4 { color: white; background-color: black; text-align: justify; font-style: normal; font-weight: normal; margin-bottom: 20px; font-size: 100%; }
body {
	margin-bottom: 10px;
	color: white; background: black;
	margin-left: 10%; margin-right: 10%; 
}