body {
    background-color: black;
    font-family: arial;
    color: white;
}

h1{
    color:grey;
    font-family: Verdana;
}
.maindev{
    Background-color: white;
    color: black;
    width: 300px;
    padding: 20px;
    border-radius: 25px;
    text-align: center;
    border-color: white;
}