CSS :optional
A decade ago HTML and CSS added the ability to, at least signal, validation of form fields. The required attribute helped inform users which fields were required, while pattern allowed developers to provide a regular expression to match against an <input>'s value. Targeting required fields and validation values with just CSS and HTML was very useful.
Did you know that CSS provides :optional to allow you to style form elements that aren't required?
input:optional, select:optional, textarea:optional {
border: 1px solid #eee;
}
[required] {
border: 1px solid red;
}
In a sense, it feels like :optional represents :not([required]), but :optional is limited to just form fields.
![How to Create a Twitter Card]()
One of my favorite social APIs was the Open Graph API adopted by Facebook. Adding just a few META tags to each page allowed links to my article to be styled and presented the way I wanted them to, giving me a bit of control...
![Camera and Video Control with HTML5]()
Client-side APIs on mobile and desktop devices are quickly providing the same APIs. Of course our mobile devices got access to some of these APIs first, but those APIs are slowly making their way to the desktop. One of those APIs is the getUserMedia API...
![AJAX Page Loads Using MooTools Fx.Explode]()
Note: All credit for Fx.Explode goes to Jan Kassens.
One of the awesome pieces of code in MooTools Core Developer Jan Kassens' sandbox is his Fx.Explode functionality. When you click on any of the designated Fx.Explode elements, the elements "explode" off of the...
![WordPress-Style Comment Controls Using MooTools or jQuery]()
WordPress has a nice little effect on the Admin Dashboard where it shows and hides the comment control links when you mouseover and mouseout of the record's container. Here's how to achieve that effect using MooTools or jQuery.
The XHTML
Notice that we place the links into...
It’s probably more like :not(:required), right?