h1 {
    text-align: center;
}

body {
    font-family: 'Rajdhani', sans-serif;
    margin: auto;
    width: 50%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: rgb(32, 144, 32);
}

@media only screen and (max-width: 600px) {
    body {
        width: 80%;
        background-color: black;
    }
}

@media only screen and (min-width: 600px) {
    body {
        width: 50%;
        background-color: red;
    }
}

@media only screen and (min-width: 916px) {
    body {
        width: 30%;
        background-color: green;
    }
}

button {
    float: right;
}