* {
    margin: 0;
    padding: 0;
}
html {
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: auto;
    padding: 0;
    height: 100vh;
}
body {
    background-image: url('image.png');
    background-size: cover;
    background-repeat: no-repeat;
    min-height: 100%;
    width: 100vw;
    overflow: hidden;
    max-width: 100%;
}
nav {
    text-transform: uppercase;
    text-align: right;
    position: static;
    background-color: black;
    opacity: 0.85;
    margin-bottom: 25vh;
}
nav ul {
    list-style-type: none;
    overflow: hidden;
}
nav li {
    display: inline;
    float: right;
}
nav li a {
    display: block;
    text-decoration: none;
    text-align: center;
    padding: 14px 16px;
    color: white;
    font-weight: bold;
    cursor: pointer;
}
nav li a:hover {
    background-color: red;
}
nav li a:active {
    background-color: brown;
}
.main {
    margin-bottom: 10vh;
}
.main h1 {
    color: white;
    font-size: 45px;
    text-shadow: 2px 2px black;
}
.button-1 {
    text-align: center;
    cursor: pointer;
}
.button-1 a {
    text-decoration: none;
    font-size: 24px;
    font-weight: bold;
    color: white;
    background-color: black;
    padding: 20px;
    border-radius: 10px;
}
.button-1 a:active {
    background-color: red;
    border: 1px solid black;
}
.button-1 a:hover {
    background-color: red;
    border: 1px solid black;
}
.footer {
    position: absolute;
    bottom: 0px;
    background-color: black;
    opacity: 0.85;
    padding: 10px;
    width: 100vw;
    overflow: hidden;
    max-width: 99%;
}
.footer p {
    text-align: right;
    font-size: 20px;
    color: grey;
}
.footer a {
    cursor: pointer;
}
.footer a:active {
    color: blue;
}
.footer a:hover {
    color: blue;
}
.footer a:visited {
    color: lightblue;
}