Summary of things to pay attention to when using css in javascript_javascript skills

1. When changing the style of a single element, note that the syntax of the style object corresponds almost one-to-one to the syntax used in CSS. However, attributes containing hyphens are replaced with a form of "camel casting", for example: font-size now becomes fontSize, and margin-top becomes marginTop;
2. When using "float", Because "float" is a reserved word in JavaScript, you cannot use style.float and change it to style.cssFloat (IE uses style.styleFloat);
3. Get the calculated style of the element:
Under W3C DOM you can:

Copy code The code is as follows:

var heading = document.getElementById ("heading");
var computedStyle = document.defaultView.getComputedStyle(heading,null);
var computedFontFamily = computedStyle.fontFamily;//sans-serif

IE does not support Using the DOM standard method, you can:

Copy the code The code is as follows:

var heading = document. getElementById("heading");
var computedFontFamily = heading.currentStyle.fontFamily;//sans-serif

Based on the above methods, you can create a cross-browser function to implement

Copy code The code is as follows:

function retrieveComputedStyle(element,styleProperty){
var computedStyle = null ;
if(typeof element.currentStyle != "undefined"){
computedStyle = element.currentStyle;
}else{
computedStyle = document.defaultView.getComputedStyle(element,null);
}
return computedStyle[styleProperty];
}

对照表

CSS Properties To JavaScript Reference Conversion

CSS Property	JavaScript Reference
background	background
background-attachment	backgroundAttachment
background-color	backgroundColor
background-image	backgroundImage
background-position	backgroundPosition
background-repeat	backgroundRepeat
border	border
border-bottom	borderBottom
border-bottom-color	borderBottomColor
border-bottom-style	borderBottomStyle
border-bottom-width	borderBottomWidth
border-color	borderColor
border-left	borderLeft
border-left-color	borderLeftColor
border-left-style	borderLeftStyle
border-left-width	borderLeftWidth
border-right	borderRight
border-right-color	borderRightColor
border-right-style	borderRightStyle
border-right-width	borderRightWidth
border-style	borderStyle
border-top	borderTop
border-top-color	borderTopColor
border-top-style	borderTopStyle
border-top-width	borderTopWidth
border-width	borderWidth
clear	clear
clip	clip
color	color
cursor	cursor
display	display
filter	filter
font	font
font-family	fontFamily
font-size	fontSize
font-variant	fontVariant
font-weight	fontWeight
height	height
left	left
letter-spacing	letterSpacing
line-height	lineHeight
list-style	listStyle
list-style-image	listStyleImage
list-style-position	listStylePosition
list-style-type	listStyleType
margin	margin
margin-bottom	marginBottom
margin-left	marginLeft
margin-right	marginRight
margin-top	marginTop
overflow	overflow
padding	padding
padding-bottom	paddingBottom
padding-left	paddingLeft
padding-right	paddingRight
padding-top	paddingTop
page-break-after	pageBreakAfter
page-break-before	pageBreakBefore
position	position
float	styleFloat
text-align	textAlign
text-decoration	textDecoration
text-decoration: blink	textDecorationBlink
text-decoration: line-through	textDecorationLineThrough
text-decoration: none	textDecorationNone
text-decoration: overline	textDecorationOverline
text-decoration: underline	textDecorationUnderline
text-indent	textIndent
text-transform	textTransform
top	top
vertical-align	verticalAlign
visibility	visibility
width	width
z-index	zIndex

Usage

Internet Explorer

document.all.div_id.style.JS_property_reference = "new_CSS_property_value";

Older Netscape's (4.7 and earlier)

document.div_id.JS_property_reference = "new_CSS_property_value";

Netscape 6.0 and Opera (and other Mozilla)

document.getElementById(div_id).style.JS_property_reference = "new_CSS_property_value";

Note the use of parentheses instead of square brackets in newer Mozilla's "getElementById()" reference.