body, html{
    background-color: black;
    height: 100%;
    width: 100%;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
h1{
    color: white;
    text-align: center;
}
.startbutton {
    margin-left: auto;
    margin-right: auto;
    margin-top: 40%;
    margin-bottom: auto;
    display: block;
    text-align: center;
    padding: 20px 30px;
    font-size: 30px;
    color: #15F4EE;
    font-family: poppins;
    font-weight: 800;
    border: 10px solid #15F4EE;
    text-transform: uppercase;
    letter-spacing: 15px;
    cursor: pointer;
    border-radius: 100px;
    transition: 1.5s;
    background-color: black;
}
.startbutton:hover{
    box-shadow: 0 4px 30px 0 #15F4EE inset, 0 4px 30px 0 #15F4EE,
                0 4px 30px 0 #15F4EE inset, 0 4px 30px 0 #15F4EE ;
    text-shadow: 0 0 5px #15F4EE, 0 0 5px #15F4EE;
}
#startpages:link, #startpages:visited {
    text-decoration: none;
    color: #15F4EE;
}
@media only screen and (max-width: 600px) {
    h1 {
        color: white;
        text-align: center;
        font-size: 100px;
        margin-top: 160px;
    }
    .startbutton {
        margin-left: auto;
        margin-right: auto;
        margin-top: 40%;
        margin-bottom: auto;
        display: block;
        text-align: center;
        padding: 10px 20px;
        color: #15F4EE;
        font-family: poppins;
        font-weight: 800;
        border: 5px solid #15F4EE;
        text-transform: uppercase;
        letter-spacing: 10px;
        cursor: pointer;
        font-size: 30px;
        border-radius: 100px;
        transition: 1.5s;
        background-color: black;
    }
}