body {
    background-color: white;
}

.container {
    font-family: 'Open Sans', sans-serif;
    display: flex;
    flex-wrap: wrap;
}

.letter {
    margin: 5px;
    width: 200px;
    height: 200px;
    font-size: 150px;
    text-align: center;
    flex-shrink: 0;
    flex-grow: 0;
}