body {
    color: rgba( 4, 10, 10, 1 );
    background-color:#44cee3;
    font-family: 'Syne', sans-serif;
}
button{
    padding: 10px;
    border-style: none;
    border-radius: 10px;
    background-color: green;
    margin-bottom: 100px;
}
#telefon {
    height: 300px;
    margin-top: 10px;
    border-radius: 10px;
}