body {
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
    font-family: 'Jua', sans-serif;
    background:black;
    color:#ffffff;
}

.container {
    width: 223px;
    background: lightpink;
    padding: 10px;
    border-radius: 8px;
    margin: 30px auto;
    display: flex;
    flex-flow: row wrap;
    box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.1);
}

header h1 {
    padding: 50px 0;
}

.box {
    min-width: 70px;
    min-height: 70px;
    display: inline-block;
    border: 2px solid lightpink;
    background: white;
    border-radius: 3px;
    margin: 0;
    padding: 0;
}

.box:hover {
    background: lightyellow;
    transition: 0.2s ease-in;
}

.box h1 {
    line-height: 70px;
    margin: 0;
    color: black;
}

footer {
    margin-top: 50px;
    color: gray;
}

button {
    background:lightblue;
    font-size: 1em;
    padding: 8px 15px;
    border-radius: 5px;
    font-family: 'Jua', sans-serif;
    outline: none;
    border: none;
    box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.1);
}

button:active {
    background: lightskyblue;
}