style.css

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

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgb(88, 45, 45);
}

h1 {
    width: fit-content;
    position: relative;
    top: 30px;
    text-align: center;
    font-size: 50px;
    font-family: 'Tilt Prism', cursive;
    background-color: #bb8e12;
    padding: 10px;
    border-radius: 15px;
}

form {
    border: 4px solid #bb8e12;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 350px;
    height: 150px;
    position: relative;
    top: 100px;
    border-radius: 15px;
}

#textfield {
    width: 70%;
    height: 40%;
    margin: 10px;
    padding: 10px;
    font-size: 30px;
}

#submitBtn {
    width: 30%;
    height: 30%;
    font-size: 22px;
    cursor: pointer;
}

#showScreen {
    width: 350px;
    height: 70px;
    position: relative;
    top: 120px;
    text-align: center;
    font-size: 40px;
    font-family: 'Tilt Prism', cursive;
}

ul {
    position: relative;
    top: 150px;
    font-size: 30px;
    list-style: none;
    text-align: center;
    font-family: 'Tilt Prism', cursive;
    background-color: rgb(173, 104, 104);
    padding: 10px;
    border-radius: 15px;
}

footer {
    position: absolute;
    color: #fff;
    background-color: rgb(8, 8, 8);
    font-size: 20px;
    top: 92vh;
    width: 100%;
    height: 8vh ;
    padding: 20px;
    display: flex;
    flex-direction: center;
    align-items: center;
    justify-content: space-between;
}

footer .fa-brands {
    font-size: 40px;
    color: #fff;
}