body{
	background-color: #d9d9d9;
}

#mainhead{font-size: 200%;}

h2{
	text-align: center;
	font-family: Times New Roman;
	font-size: 200%;
	color: red;
}

.theories{
	background-color: #bfbfbf;
	border-radius: 25px;
	font-family: Arial;
	margin:20px;
	padding:20px;
}

img{ 
    max-width:30%;
    max-height:30%;
    margin: auto;

    text-align:center;
    display:block;
}

#homelink{color:black;}

.center{
	display:block;
	background-color: #bfbfbf;
	border-radius: 25px;
	font-family: Arial;
	margin:auto;
	padding:20px;
	text-align: center;
	max-width: 40%;
}