.reveal img{margin:0}.reveal pre{margin:0;width:100%}.reveal pre.line-numbers code{counter-reset:step;counter-increment:step 0}.reveal pre.line-numbers code .line:before{content:counter(step);counter-increment:step;width:1rem;margin-right:1.5rem;display:inline-block;text-align:right;color:rgba(115,138,148,.4)}.reveal pre code .highlighted{display:inline-block;width:100%;background-color:rgba(101,117,133,.16)}