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

body {
    display: flex;
    height: 100vh;
    align-items: center;
    justify-content: center;
    background: url(background.jpg);
}

#container {
    border: 5px solid white;
    width: 750px;
    text-align: center;
}

#btn1 {
    margin: 25px auto;
    height: 50px;
    width: 250px;
    font-size: large;
}

#btn2 {
    margin: 25px auto;
    height: 50px;
    width: 250px;
    font-size: large;
}

#btn3 {
    margin: 25px auto;
    height: 50px;
    width: 250px;
    font-size: large;
}

#btn4 {
    margin: 25px auto;
    height: 50px;
    width: 250px;
    font-size: large;
}

#btn5 {
    margin: 25px auto;
    height: 50px;
    width: 285px;
    font-size: large;
}

#output {
    margin: 25px auto;
    font-size: 30px;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}