Is there a way to determine with JavaScript whether the browser is compatible with the CSS :first-child selector?
Is there a way to determine with JavaScript whether the browser is compatible with the CSS :first-child selector?
To determine if the :first-child rule is being applied, you can specify a specific value and then use JavaScript to check the computed style. For example:
<style>
#bar { height: 100px; }
#bar:first-child { height: 200px; }
</style>
<div><div id="bar"></div></div>
<script>
if ($('#bar').height() < 200)
alert('first-child not supported.');
</script>
(Please note that this code has not been tested on IE 6.)
Is there a jQuery function available to determine support for this feature? It seems like it could be complex if it exists at all. Do you really need this functionality? Can you explain why?
If jQuery is an option, perhaps you could use a jQuery statement to apply the desired class/property directly to the element instead of relying on CSS.
For a more manual approach, consulting the quirksmode.org compatibility table, reveals that the selector works well in modern browsers but may encounter issues in the IE family, especially in IE8.
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