Case Insensitive CSS Attribute Selector

Date:

Share post:

CSS selectors never cease to amaze me in how powerful they can be in matching complex patterns. Most of that flexibility is in parent/child/sibling relationships, very seldomly in value matching. Consider my surprise when I learned that CSS allows matching attribute values regardless off case!

Adding a {space}i to the attribute selector brackets will make the attribute value search case insensitive:

/* case sensitive, only matches "example" */
[class=example] {
  background: pink;
}

/* case insensitive, matches "example", "eXampLe", etc. */
[class=example i] {
  background: lightblue;
}

The use cases for this i flag are likely very limited, especially if this flag is knew knowledge for you and you’re used to a standard lower-case standard. A loose CSS classname standard will have and would continue to lead to problems, so use this case insensitivity flag sparingly!

Request Metrics real user monitoring
Request Metrics real user monitoring
Request Metrics real user monitoring
  • 5 Awesome New Mozilla Technologies You’ve Never Heard Of

    5 Awesome New Mozilla Technologies You’ve Never Heard Of

    My trip to Mozilla Summit 2013 was incredible.  I’ve spent so much time focusing on my project that I had lost sight of all of the great work Mozillians were putting out.  MozSummit provided the perfect reminder of how brilliant my colleagues are and how much…

  • I’m an Impostor

    I’m an Impostor

    This is the hardest thing I’ve ever had to write, much less admit to myself.  I’ve written resignation letters from jobs I’ve loved, I’ve ended relationships, I’ve failed at a host of tasks, and let myself down in my life.  All of those feelings were very…

  • jQuery Random Link Color Animations

    jQuery Random Link Color Animations

    We all know that we can set a link’s :hover color, but what if we want to add a bit more dynamism and flair? jQuery allows you to not only animate to a specified color, but also allows you to animate to a random color. The…

  • Duplicate the jQuery Homepage Tooltips Using MooTools

    Duplicate the jQuery Homepage Tooltips Using MooTools

    The jQuery homepage has a pretty suave tooltip-like effect as seen below: Here’s how to accomplish this same effect using MooTools. The XHTML The above XHTML was taken directly from the jQuery homepage — no changes. The CSS The above CSS has been slightly modified to match the CSS rules already…


Source link
spot_img

Related articles

OpenAI acquires product testing startup Statsig and shakes up its leadership team

OpenAI announced in a blog post on Tuesday that it agreed to acquire the product testing startup, Statsig,...

Hacker suspected of trying to cheat his way into university is arrested in Spain

Spanish police have arrested a suspected hacker for accessing a government website in order to alter the high...

Samsung Galaxy S25 Edge Trims Fat For A Sleek, Slim AI-Powered Smartphone

Samsung's Galaxy S25 range of flagship phones is now complete,...