Untitled

<!DOCTYPE html>
<title>Foo</title>
<div style=white-space:pre>
<i>foo bar lorem ipsum</i>
<i>foo bar lorem ipsum</i>
<i>foo bar lorem ipsum</i>
<i>foo bar lorem ipsum</i>
<i>foo bar lorem ipsum</i>
<i>foo bar lorem ipsum</i>
</div>
<script>
Element.prototype.css=function(a,i,n){for(n in''+a===a||a)this.style[n]=a[n];return i||n?(this.style[a]=i,this):getComputedStyle(this)[a]};

Object.getOwnPropertyNames(Element.prototype).forEach(function(a){

	NodeList.prototype[a]=function(){for(var n in this)this[n][a].apply(this[n],arguments)}
});

Object.getOwnPropertyNames(NodeList.prototype).forEach(function(a){

	String.prototype[a]=function(){document.querySelectorAll(this)[a].apply(document.querySelectorAll(this),arguments)}
});

"div>i".css({color:"red"})
</script>