Fix formatting of pull 325. Fixes #4146.

src/css.js

@@ -9,6 +9,7 @@ var ralpha = /alpha\([^)]*\)/i,
 	rnum = /^-?\d/,
 	rrelNum = /^[+\-]=/,
 	rrelNumFilter = /[^+\-\.\de]+/g,
+	rinputbutton = /input|button/i,
 
 	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
 	cssWidth = [ "Left", "Right" ],
@@ -338,39 +339,45 @@ curCSS = getComputedStyle || currentStyle;
 
 function getWH( elem, name, extra ) {
 	var which = name === "width" ? cssWidth : cssHeight,
-		cur = curCSS(elem, name),
-		// We're addressing the way Firefox handles certain inputs and buttons, offsetWidth/height actually returns a normal width/height
-		ff = /input|button/i.test( elem.tagName.toLowerCase() ) && curCSS( elem, '-moz-box-sizing' ) === 'border-box'; 
+		cur = curCSS( elem, name ),
+
+		// We're addressing the way Firefox handles certain inputs and buttons,
+		// offsetWidth/height actually returns a normal width/height
+		boxSizing = rinputbutton.test( elem.nodeName ) &&
+			curCSS( elem, "-moz-box-sizing" ) === "border-box"; 
 
 	// IE will return auto if we try to grab a width/height that is not set
-	if( ff || cur === 'auto') {
+	if ( boxSizing || cur === "auto" ) {
 		cur = name === "width" ? elem.offsetWidth : elem.offsetHeight;
 	}
-	
-	// Fixes an IE7 effects test. "Chain show hide" was returning "scroll" instead of "visible"
-	if( name == "height" ){
+
+	// Make sure that IE7 returns the correct computed value for display
+	if ( name === "height" ) {
 		elem.offsetHeight;
 	}
 
-	var val = parseFloat(cur) || 0;
+	var val = parseFloat( cur ) || 0;
 
 	if ( extra ) {
-		for( var i = 0, len = which.length; i < len ; i++ ) {
+		for ( var i = 0, len = which.length; i < len ; i++ ) {
 			var dir = which[i];
+
 			// outerWidth/height
-			if ( extra === "border" || extra === 'margin' ) {
+			if ( extra === "border" || extra === "margin" ) {
 				val += parseFloat(jQuery.css( elem, "border" + dir + "Width" )) || 0;
 				val += parseFloat(jQuery.css( elem, "padding" + dir )) || 0;
-				if( extra == 'margin' ) {
+
+				if ( extra == "margin" ) {
 					val += parseFloat(jQuery.css( elem, "margin" + dir )) || 0;
 				}
-			} 
+
 			// innerWidth/height
-			else {
+			} else {
 				val += parseFloat(jQuery.css( elem, "padding" + dir )) || 0;
 			}
 		}
 	}
+
 	return val;
 }