How Can I Reliably Style the Last Child Element in CSS Across All Browsers?

Understanding the :last-child Selector

In the context of styling web pages, the :last-child selector allows you to apply styles specifically to the last element in a given context. However, its usage can prove challenging in certain situations.

Consider a scenario where you wish to apply a style to the final

element within a

container. Implementing the following CSS rule:

#refundReasonMenu #nav li:last-child {
    border-bottom: 1px solid #b5b5b5;
}

While we intend to apply styling to the last

element, it may fail to do so. This is because cross-browser compatibility with :last-child can be unreliable. Notably, Internet Explorer versions below 9 and Safari versions below 3.2 lack support for this pseudoclass.

Addressing Browser Incompatibility

To ensure consistency across browsers, it is recommended to employ an explicit class for the last child instead:

#refundReasonMenu #nav li.last-child {
    border-bottom: 1px solid #b5b5b5;
}

By adding the class "last-child" to the HTML element:

...

You can reliably target and style the last

element within the #nav container.

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