ol {
    list-style-type: none;
    counter-reset: item;
    margin: 0;
    margin-top: 5px;
    padding: 0;
    }

    ol > li {
    display: table;
    counter-increment: item;
    margin-bottom: 0.6em;
    }

    ol > li:before {
    content: counters(item, ".") ". ";
    display: table-cell;
    padding-right: 0.6em;    
    }

    li ol > li {
    margin: 0;
    margin-top: 5px;
    }

    li ol > li:before {
    content: counters(item, ".") " ";
    }