body {
    font-family:Verdana,sans-serif;
    position: relative;
    width: 1000px;
    min-height:80vh;
    margin-left:auto;
    margin-right:auto;
    margin-top:0;
    margin-bottom: 0;
    padding-bottom: 120px;
    font-size:18px;
    text-align: center;
    line-height: 1.6;
    background: url("Pictures/body_back.jpg");
    background-repeat: repeat-y;
    background-position: center top;
    background-size: 1000px 2000px;
    background-color: rgb(280, 260, 250); 
    background-attachment:fixed;
}

table {
    border-spacing: 50px 2px;
    margin-left: auto;
    margin-right: auto;
    font-size:18px;
}

a {
    font-family: Verdana, sans-serif;
    display: inline;
    color:rgb(48,121,189);
    text-decoration:none;
    font-size:20px
}

li a {
    float: left;
    font-family: Verdana, sans-serif;
    display: block;
    padding: 15px;
    color:rgb(0,0,0);
    text-decoration:none;
    font-size:20px
}

li a:hover {
    background-color: rgb(0,0,0);
    color: rgb(280,260,250);
}

li a:focus {
    background-color: rgb(260,240,230);
    color: rgb(0,0,0);
}

ul {
    list-style-type: none;
    margin: 0px;
    padding: 0px;
    overflow: hidden;
    background-color: rgb(280, 260, 250);
}

ol {
    list-style-type: disc;
    margin: 10px;
    overflow: hidden;
    background-color: rgb(280, 260, 250);
}

header {
    margin: 0;
    margin-bottom:30px;
    padding-top: 10px;
    padding-bottom: 30px;
    padding-left: 30px;
    padding-right: 30px;
    text-align:left;
    font-size:20px;
    line-height: 1;
    background-color: rgba(48,121,189, .7);
}

footer {
    position: absolute;
    bottom: 0; 
    left: 0;
    right: 0;
    margin-top:20px;
    height: 100px;
    text-align: center;
    background-color: rgba(48,121,189, .7);
    display: flex;
    justify-content: space-around;
    align-items: center;
}

h1 {
    font-size:80px;
    margin-top:15px;
    margin-bottom:15px;
}

h2 {
    font-size:25px;
    text-align:left;
}

h3 {
    padding-left: 5%;
    font-size:30px;
    text-align:left;
    color: rgb(280,260,250);
    background-color: rgb(0,0,0);
}

h4 {
    padding-left: 5%;
    font-size:20px;
    text-align:left;
}

nav {
    margin-top:50px;
    margin-bottom:50px;
}

section {
    min-width: 900px;
    padding: 20px;
    margin-left: 2%;
    margin-right: 2%;
    margin-top: 20px;
    margin-bottom: 20px;
    background-color: rgb(280, 260, 250);
    text-align: left;
}

p {
    text-align: center;
}