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