Why Does `:last-of-type` Fail to Select the Last Element with a Specific Class?

Why :last-of-type Selects Incorrectly with a Class Attribute

In the provided HTML and CSS code, it is intended for only the last element with the class "visible" within a div to be displayed. However, the .class:last-of-type selector remains ineffective.

The issue arises from a misconception of :last-of-type's function. While it accurately selects the last element of a particular type (in this case,

elements), it does not consider specific class attributes.

Pseudo-Class Functionality:

The W3C defines :last-of-type as: "An element that is the last sibling of its type." Its behavior can be summarized as follows:

1. It identifies elements within each containing element in the HTML.
2. It locates the last element in each set of identified elements.
3. It verifies if the selected element is a

   element.

4. It checks for the presence of the ".visible" class attribute.

Selector Analysis:

The selector p.visible:last-of-type targets the following:

• Identifies all

  elements within each div.

• Selects the last

  element in each set.

• Requires both the last

  element and the ".visible" class attribute.

Result:

Since only the first two

elements have the ".visible" class, none of the

elements become visible despite using :last-of-type correctly.

Solution:

To select the last element with the ".visible" class, a different approach is necessary. JavaScript or a custom CSS attribute-based solution may provide a suitable workaround.

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