Case Insensitive CSS Attribute Selector

Published on:

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
  • Responsive Images: The Ultimate Guide

    Responsive Images: The Ultimate Guide

    Chances are that any Web designers using our Ghostlab browser testing app, which allows seamless testing across all devices simultaneously, will have worked with responsive design in some shape or form. And as today’s websites and devices become ever more varied, a plethora of responsive images…

  • 9 Mind-Blowing Canvas Demos

    9 Mind-Blowing Canvas Demos

    The element has been a revelation for the visual experts among our ranks.  Canvas provides the means for incredible and efficient animations with the added bonus of no Flash; these developers can flash their awesome JavaScript skills instead.  Here are nine unbelievable canvas demos that…

  • HTML5 download Attribute

    HTML5 download Attribute

    I tend to get caught up on the JavaScript side of the HTML5 revolution, and can you blame me?  HTML5 gives us awesome “big” stuff like WebSockets, Web Workers, History, Storage and little helpers like the Element classList collection.  There are, however, smaller features in…

  • Scrolling “Go To Top” Link Using Dojo

    Scrolling “Go To Top” Link Using Dojo

    One of the most popular code snippets of posted on my blog has been the scrolling “Go To Top” link snippet. The premise of the snippet is simple: once the user scrolls an element (usually the BODY element) past a given threshold, a “Go…


Source link

Related