body {
    background-color: black;
    font-family: Arial;
}
.navdiv {
    align-items: center;
    text-decoration: none;
    display: flex;
    justify-content: space-between;
}
.navdiv a{
    text-decoration: none;
    color: white;
}
.navdiv li{
    list-style: none;
    display: inline-block;
}
.navdiv li a {
    font-size: 2vh;
    font-weight: bold;
    margin-right: 2.5vh;
}

.navbar {
    background-color: rgb(56, 56, 56);
}

.logo a{
    font-size: 3.5vh;
    list-style: none;
    padding: 1.5vh;
}

h1 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 5vh;
    color: white;
    text-align: center;
    position: relative;
    top: 10vh;
}
h2{
    color: white;
    text-align: center;
    position: relative;
    top: 10vh;

}

#c4xy_btn {
    background-color: gray;
    color: white;
    position: relative;
    width: 15vh;
    height: 5vh;
    border: 0px;
    border-radius: 25px;
    font-size: 20px;
    top: 45vh;
    left: 5em;
}

#c4xy_btn:hover {
    background-color: rgb(61, 61, 61);
}

h4{
    color: white;
    position: relative;
    top: 100em;
    text-align: center;
}