html, body {
    margin: 1em;
    padding: 0;
}

.grid-container {
      
}

.grid-item {
    padding: .5em;
    font-size: 2em;
    color: black;
    display: flex;
    align-items: center;
    justify-content: center;
}
    
header {
    background-color: palegoldenrod;
}
nav {
    background-color: lightcoral;
}
main {
    background-color: lightgreen;
}
footer {
    background-color: gold;
}