body {
    background-color: rgb(227, 227, 227);
}

#container {
    text-align: center;
    max-width: 65%;
    background-color: white;
    border: 3px solid lightgrey;
    border-radius: 20px;
    padding: 5%;
    margin: auto;
}

input:valid, input:placeholder-shown {
    background-color: rgb(57, 255, 57);
}

input:invalid, input:placeholder-shown {
    background-color: rgb(255, 54, 54);
}

.larger {
    font-size: x-large;
    font-weight: bold;
}

.largerer {
    font-size: xx-large;
}

button {
    height: 3%;
    width: 40%;
}