body {
    font-family: 'Meiryo UI', 'Arial', sans-serif;
    color: #3c3c3c;
    background-color: #fff;
    font-size: 14px;
}

nav.navbar {
    border-bottom: 1px solid black;
}

div.container > .column ol {
    list-style-type: none;
    padding-left: 0;
}

.column {
    display: inline-block;
}