Case Insensitive CSS Attribute Selector

CSS selectors by no means stop to amaze me in how highly effective they are often in matching advanced patterns. Most of that flexibility is in dad or mum/little one/sibling relationships, very seldomly in worth matching. Take into account my shock once I discovered that CSS permits matching attribute values regardless off case!

Including a {area}i to the attribute selector brackets will make the attribute worth search case insensitive:

/* case delicate, solely matches "instance" */
[class=example] {
  background: pink;
}

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

The use instances for this i flag are doubtless very restricted, particularly if this flag is knew information for you and also you’re used to an ordinary lower-case customary. A free CSS classname customary could have and would proceed to result in issues, so use this case insensitivity flag sparingly!