*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Source Code Pro', monospace;
    list-style: none;
    text-decoration: none; 
}

:root {
    font-size: xx-large;
}

body {
    height: 100vh;
    max-width: 100%;
    display:flex; /*or grid */
    justify-content: center;
    align-items: center;
    background-color: #e5e5e5;
}

button {
    font-size: x-large;
    text-align: center; 
}

label {
    height: 5rem;
    width: 10rem;
    border: 2px solid #ff6600;
    display: block;
    margin: 10px;
    padding: 10px 10px; 
    text-align: center;
}