.A {    
    margin-left:auto;
    margin-right:auto;
    width: 500px;
    position:relative;
   }
.B {
    margin-left:auto;
    margin-right:auto;
    position:absolute;
   }
   
.header {
	font-size: 1px;
	font-weight: bolder;	
	padding-top: 20px;
	}
   
.spacer {
	width: 50px;
   }
   
.font15b{
	font-size: 15px;
	font-weight: bolder;	
}

.font15bb{
	font-size: 15px;
	color: navy;
	font-weight: bolder;	
}

.font20bb{
	font-size: 20px;
	color: navy;
	font-weight: bolder;	
}

.font10{
	font-size: 10px;
}

.font12rb{
	font-size: 12px;
	color: maroon;
	font-weight: bold;	
}

input[type="submit"] {
    width: 25%;      
    padding: 5px 5px;
    font-size: 15px;
}