ol{list-style-type:upper-roman;margin:0;padding:0;counter-reset:item-counter}ol ol{margin-left:1em}li li{counter-increment:item-counter}ol>li{display:table;margin-bottom:2em}ol>li:before{display:table-cell;padding-right:1em}li ol>li{margin:1em 0}li ol>li li{margin:0}li li:before{content:counter(item-counter,upper-roman) ". "}