<STYLE type="text/css">

html {
    box-sizing: border-box;
    min-height: 100%;
}


*,
*:before,
*:after {
        box-sizing: inherit;
        }

body {
   position: relative;
   margin: 0;
   min-height: 100%;
   border: solid;
   border-color: white;
}

footer {
    position: absolute;
    padding:1em;
    left: 0;
    bottom: 0;
    height: 10px;
    width: 100%;
    text-align:center;
    color:white;
    background-color:green;

}

.divleft {
    width: 400px;
    height: 300px;
 
    position: relative;
    left: 170px;
    top: 80px;
    z-index: -3;
}

.divright {
    width: 200px;
    height: 300px;

    position: absolute;
    left: 680px;
    top: 150px;
    z-index: -1;
}

.divmiddle {
    width: 200px;
    height: 300px;

    position: absolute;
    left: 500px;
    top: 350px;
    z-index: -2;
}

.divtxt{
    width: 240px;
    height: 300px;

    position: absolute;
    left: 250px;
    top: 460px;
    z-index: -4;
}

ul.pagination {
    display: inline-block;
    padding: 0;
    width:26%;
    position: absolute;
    margin-left:37%;
    margin-right:37%;
    bottom: 40px;

    
}

ul.pagination li {display: inline;}

ul.pagination li a {
    color: black;
    float: left;
    padding: 8px 16px;
    text-decoration: none;
}

ul.pagination li a.active {
    background-color: green;
    color: white;

}

ul.pagination li a:hover:not(.active) {background-color: white;}

div.center {text-align: center;}

.mid {
	margin: auto;
	width: 60%;
     }

h1 {
    color: green;
    text-align: center;
    font-size:40px;
}
h2 {
    color: green;
    text-align: center;
    font-size:25px;
}

h4 {
    color: green;
    text-align: center;
    font-size:20px;
}

header {
	height:70px;
	padding:0em;
	color:green;
	background-color:white;
	clear:left;
	width: 100%;
	}

p {
    font-family: comic sans, verdana;
    font-size: 12px;
    border-top-style: solid;
    border-right-style: solid;
    border-bottom-style: solid;
    border-left-style: solid;
    border-color: green;
    border-width: 2px 10px 2px 10px;
    margin-top: 50px;
    margin-bottom: 50px;
    margin-right: 80px;
    margin-left: 150px;
    padding-top: 20px;
    padding-right: 50px;
    padding-bottom: 20px;
    padding-left: 50px;
}

table {
	font-family:comic sans, verdana;
	font-size:12px;
}

img {
    display: block;
    margin: auto;
    max-width: 100%;
    height:auto;
    padding:5px
    }

mem img {
	float: right;
	}


ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: green;

}

li {
    float: left;
}

li a, .dropbtn {
    display: inline-block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;

}

li a:hover, .dropdown:hover .dropbtn {
    background-color: red;
}

li.dropdown {
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}

.dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {background-color: #f1f1f1}

.dropdown:hover .dropdown-content {
    display: block;
}



</STYLE>

http://www.w3schools.com/html/html_layout.asp