style.css

@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600&display=swap');

:root{
    --dark-color: rgb(72, 161, 235);
    --primary-color: rgb(24, 101, 173);
    --light-color: rgb(153, 231, 245);
}

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Open Sans', sans-serif;
}

body{
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 1.2rem;
    background-color: var(--dark-color);
    padding: 2rem;
}

.quote-wrapper{
    background-color: white;
    border-radius: 20px;
    padding: 2rem 1.2rem;
    box-shadow: 0 2px 15px -5px rgba(0, 0, 0, 1);
}

.quote-wrapper h2{
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.quote-wrapper small{
    font-weight: 700;
    padding: 0.2rem 1rem;
    color: var(--dark-color);
    border-radius: 5px;
    text-transform: capitalize;
}

.quote-wrapper blockquote{
    padding: 1.4rem;
    font-weight: 300;
}

.quote-wrapper cite{
    display: block;
    font-size: normal;
    margin-bottom: 1rem;
}

#gen-quote-btn{
    font-size: 1.1rem;
    border: none;
    background-color: var(--dark-color);
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 1.5rem;
    cursor: pointer;
    outline: 0;
}

#gen-quote-btn:hover{
    color: black;
    background-color: var(--primary-color);
    font-weight: bold;
    box-shadow: 0px 0px 9px 0px rgba(159, 107, 160, 0.67);
}

@media screen and (min-width: 680px) {
    .quote-wrapper{
        width: 600px;
    }
}