.postText{font-size:16px;line-height:150%;} 
body { counter-reset:section 0; } 
div.entry h2:before { counter-increment:section; content: counter(section) ". " } 
div.entry h2 { counter-reset:equation } 
div.math:before { counter-increment:equation; content: "(" counter(section) "." counter(equation) ")"; float:right; } div.math img { display: block; margin-left:auto; margin-right:auto; } 
span.math img { border:none; vertical-align:middle; }