Why Does the \'title\' Attribute in Link Elements Inhibit CSS Styling?

The Enigmatic 'title' Attribute: Unveiling Its Impact on CSS Rendering

Although the HTML document and corresponding CSS provided do not exhibit any errors, the expected styling from b.css is not applied to the elements. The culprit lies in the enigmatic 'title' attribute assigned to the link elements. What role does this attribute play, and why does its presence inhibit the intended styling?

Delving into Stylesheet Types

Unveiling the behavior of the 'title' attribute necessitates an exploration of the different types of stylesheets recognized by HTML:

1. Persistent Stylesheets: These are linked using rel="stylesheet" without a 'title' attribute. Persistent stylesheets are always applied during rendering.
2. Preferred Stylesheets: Possessing both rel="stylesheet" and a 'title' attribute, preferred stylesheets with identical titles are grouped together. However, browsers favor a single stylesheet within each group for rendering.
3. Alternate Stylesheets: Linked using rel="alternate stylesheet" and a 'title' attribute, alternate stylesheets allow users to select styles. They are grouped by title and appear in the browser's stylesheet selector, if available. Mutual exclusivity exists within each group.

The Pivotal Role of 'title'

By assigning 'title' attributes to the link elements, the original intention of persistent stylesheets is inadvertently altered. They effectively become preferred stylesheets. Consequently, only one preferred stylesheet with the title "A" is chosen for rendering. This explains the absence of styling from b.css.

Remedying the Issue

To rectify this issue and ensure proper styling, the 'title' attributes on the link elements should be removed. This will revert the stylesheets to persistent stylesheets, ensuring that both a.css and b.css are applied as intended.

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