javascript中使用css需要注意的地方小结
2.在使用“float”时,因为“float”是javascript的一个保留字,所以就不能使用style.float,而改成了style.cssFloat(IE使用的是style.styleFloat);
3. 获得元素的计算样式:
在W3C DOM下可以:
var heading = document.getElementById("heading");
var computedStyle = document.defaultView.getComputedStyle(heading,null);
var computedFontFamily = computedStyle.fontFamily;//sans-serif
IE不支持使用DOM标准方法,可以:
var heading = document.getElementById("heading");
var computedFontFamily = heading.currentStyle.fontFamily;//sans-serif
综合上述这些方法,可以创建一个跨浏览器函数来实现
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.
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