Question

我有简单的元素：

<a id="a1" href="#" style="position:absolute;top:0  ;left:0  ;nav-index:1;nav-down:#b1;nav-right:#a3;nav-left:#a1;nav-up:#a1">A1</a>

如何仅动态更改导航索引和导航？

Answer 1

document.getElementById('a1').style.navIndex = newIndex;
document.getElementById('a1').style.navUp = newValue;

请注意，根据this和this，只有Opera支持nav-index和nav-up。

Answer 2

像这样：

var a1 = document.getElementById('a1');
a1.style['nav-index'] = /* somevalue */;
a1.style['nav-up']    = /* somevalue */;
// or (style properties with hypens must be converted
// to a camel case representation for use in 'dot notation')
a1.style.navIndex = /* somevalue */;
a1.style.navUp    = /* somevalue */;
// and to retrieve the original values:
a1.style['nav-index'] = '';
a1.style['nav-up']    = '';

此外，建议将内联样式移动到css文件中的类。

.a1nav {
 position:absolute;
 top:0;
 left:0;
 nav-index:1;
 nav-down:#b1;
 nav-right:#a3;
 nav-left:#a1;
 nav-up:#a1;
}

Answer 3

创建一个新的css并使用像这样的

来调用它们

function changeClass (elementID, newClass) {
    var element = document.getElementById(elementID);

    element.setAttribute("class", newClass); //For Most Browsers
    element.setAttribute("className", newClass); //For IE; harmless to other browsers.
}

Answer 4

您可以使用jquery更改nav-index和nav-up。

$('a#a1').attr('nav-index', '2'); //If you want to change it to 2.
$('a#a1').attr('nav-up', '#5'); //If you want to change it to #5.

如何动态更改css样式？

4 个答案: