I want to use JavaScript to change the appearance of a specific element's links. The CSS code would be:
#element a:link {
color: #000;
}
I am aware that you can modify the style of the element itself, like so:
elementObject.style.color = '#000';
An example of what I am aiming for in pseudo-code would be:
|
V
elementObject.[A:LINK].style.color = "#ff0000";
Is there a way to achieve this with JavaScript?
When it comes to CSS, the :link and :visited pseudo-classes may not be true elements but rather part of a CSS rule. This indicates that you may need to modify the existing rule, replace it with a new one, or add another class...
var css='#element a:link { color: #ff0000 }';
style=document.createElement('style');
if (style.styleSheet)
style.styleSheet.cssText=css;
else
style.appendChild(document.createTextNode(css));
document.getElementsByTagName('head')[0].appendChild(style);
If you want to manipulate links in a loop, you can go through each link and modify them individually.
<script type='text/javascript'>
function change_link_color()
{
var anchors = document.getElementsByTagName('a');
for(var i = 0; i < anchors.length; i++)
{
anchors[i].style.color = '#000';
}
}
window.onload = change_link_color;
</script>
Another approach is to insert a wrapper div with the class name "wrapper" and then use JavaScript to change its class to "wrapper2". This way, CSS rules targeting elements within this wrapper like .wrapper a will take effect.
.wrapper a
{
//normal code
}
.wrapper2 a
{
color: #000;
}
Is it possible to select visited links using JavaScript with just a selector? Check out this helpful resource on how to Detect Visited Links in Chrome.
You can also explore this resource:
If you want to set the style of visited/unvisited links using JavaScript, loop through all the links in the body, check if they are visited, and then apply the desired style.
var links = document.getElementsByTagName('a');
for(var i=0;i<links.length;i++){
// Check and set the style here
}
function applyCss(selector, styles){
stylesheet = document.styleSheets[document.styleSheets.length-1];
var rules = (stylesheet.cssRules != undefined) ? stylesheet.cssRules : stylesheet.rules;
if(stylesheet.insertRule)
stylesheet.insertRule(selector + '{' + styles + '}', rules.length);
else if(stylesheet.addRule)
stylesheet.addRule(selector, styles, rules.length);
}
applyCss('button:hover', 'background-color:blue;');
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