Why Do Styles Disappear When Using `title` Attributes in `` Tags?

Why are Styles Ignored When the 'title' Attribute is Used?

In the HTML provided:

<code class="html"><link rel="stylesheet" media="screen" type="text/css" title="A" href="a.css" />
<link rel="stylesheet" media="screen" type="text/css" title="B" href="b.css" /></code>

The b.css styles are not applied because the title attribute is present. According to the HTML specification, stylesheets can be one of three types:

• Persistent: Linked with rel="stylesheet" without a title attribute. These stylesheets are always used for rendering.
• Preferred: Linked with rel="stylesheet" and a title attribute. Preferred stylesheets with the same title are grouped together. However, browsers typically only select one preferred stylesheet to render.
• Alternate: Linked with rel="alternate stylesheet" and a title. These stylesheets allow users to choose from different styles and are displayed in the browser's stylesheet selector (if available). Stylesheets grouped by the same title in this category are mutually exclusive.

By adding title attributes to the stylesheets, they are inadvertently converted from persistent stylesheets to preferred stylesheets. Since there are two preferred stylesheets with different titles, browsers are forced to choose one, resulting in the non-application of the b.css styles. This issue is resolved when both stylesheets have the same title because they are then grouped together as one preferred stylesheet.

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