.center1{
    margin: auto;
    width: 90%;
    border: 1px solid #73AD21;
    padding: 1px;
		} 
.center2{
    margin-top: 100px;
    margin-bottom: 0px;
    margin-right: 50%;
    margin-left: 40%;
    width: 20%;
    border: 0px solid #73AD21;
    padding: 1px;
		} 
.center3{
    margin-top:0px;
    margin-bottom:0px;
    margin-right:0%;
    margin-left:0%;
    width: 100%;
    border: 0px solid #73AD21;
    padding: 10px;
		} 
		
.fontsize1 {
    font-size: 2.5em; /* 40px/16=2.5em */
			}

.fontsize2{
    font-size: 100%
	 background-color: #f44336;    color: blue;
    padding: 14px 25px;
    text-align: center; 
		}
		
a:link, a:visited {
    background-color: red;    color: white;
    padding: 14px 25px;
    text-align: center; 
    text-decoration: none;
    display: inline-block;
}

 .active {
    background-color: grey;
	} 
		a:hover{
    background-color: grey;
	} 
.img1 {
    position: absolute;    left: 0px;
    top: 0px;
    z-index: -1;
	} 
	
	.overflow
	        {
    overflow: auto;
            } 
	.respond:hover {
    background-color:  #99CCFF; border-radius: 10px;
	border: 2px solid #73AD21;
} 
	
	.respond1 {
    background-color:  #99CCFF; border-radius: 10px;
	border: 2px solid #73AD21;
} 
	
	
	.respond2:hover {
    background-color:  #99CCFF; border-radius: 10px;
	box-shadow: 
         inset 1px -10px 0px grey , inset -10px 10px 1px grey;
		} 
	.respond3:hover {
    background-color:  #99CCFF;
		} 
		.respond4{
    background-color:  grey;
		}