styles.css

@import url('https://fonts.googleapis.com/css2?family=Courgette&display=swap');

:root{
    --primary-yellow:rgba(252, 211, 77);
    --secondary-blue: #344CB7;
}

body {
    margin: 0px;
    font-family: 'Courgette', cursive;
}

#header {
    color: var(--secondary-blue);
    text-align: center;
    background-color: var(--primary-yellow);
    padding: 2rem;
    margin-top: 0rem;
    display: block;
    box-sizing: border-box;
    
    border: var(--secondary-blue) 5px solid;
}

textarea {
    width: 80%;
    height: 10vh;
    display: block;
    padding: 1rem;
    margin: 3rem auto;
    max-width: 800px;
    border-radius: 1rem;
    border: 3px solid var(--secondary-blue);
    font-weight: bold;
    font-size: large;
    font-family: 'Courgette', cursive;
}

#output {
    border: 3px solid var(--secondary-blue);
    height: 10vh;
    width: 80%;
    margin: 1rem auto;
    padding: 1rem;
    margin-top: 5rem auto;
    max-width: 800px;
    border-radius: 1rem;
    font-weight: bold;
    font-size: large;
}

button {
    margin: auto;
    background-color: var(--primary-yellow);
    padding: 1rem;
    border: none;
    border-radius: 1rem;
    border: 3px solid var(--secondary-blue);
    color: var(--secondary-blue);
    font-weight: bold;
    font-size: large;
    font-family: 'Courgette', cursive;
}

.footer {
    font-weight: bold;
    color: var(--secondary-blue);
    text-align: center;
    background-color: var(--primary-yellow);
    padding: 2rem;
    margin-top: 3rem;
    display: block;
    box-sizing: border-box;

    border: var(--secondary-blue) 5px solid;
}