@import url('https://fonts.googleapis.com/css2?family=Arimo&family=Lobster&display=swap');

* {
    box-sizing: border-box;
    font-family: 'Arimo', sans-serif;
}

footer {
    margin-top: 40px;
}

main {
    max-width: 1000px;
    margin: auto;
}

.row {
    margin: 8px -16px;
}

.row,
.row > .column {
    padding: 8px;
}

.column {
    float: left;
    width: 10%;
    display: none;
}

.row:after {
    content: '';
    display: table;
    clear: both;
}

.content {
    padding: 10px;
}

h4 {
    color: white;
}

.show {
    display: block;
}

.button {
    margin-top: 50px;
    border: none;
    outline: none;
    padding: 12px 16px;
    background-color: #39baff;
    cursor: pointer;
    border-radius: 50px;
}

.button:hover {
    background-color: #0c7cba;
}

.button.active:hover {
    background-color: #39baff;
}

.button.active {
    background-color: #0c7cba;
    color: white;
}