[selectors] New pseudo-class proposal: ":current"

   If you have a list of hyperlinks you're using for navigating a
website, and this list is identical for all pages, you'll want to
indicate which link points to the current page. One way to do this is to
 put a |class| attribute on the element for the hyperlink that links to
the current page:

| <ul>
|   <li>
|     <a class="currentpage" href="home.html">Home</a>
|   </li>
|   <li>
|     <a href="products.html">Products</a>
|   </li>
|   <li>
|     <a href="services.html">Services</a>
|   </li>
|   <li>
|     <a href="contacts.html">Contacts</a>
|   </li>
| <ul>

   Such markup would require you to edit all pages in the list of
hyperlinks. Alternatively, you could use Javascript to add the |class|
attribute, but that requires additional programming skill that not
everyone is capable of. It would be far simpler to have a pseudo-class
that could select the <a> element that links to the current page:

| a:current { background-color: white; }
| a:current:hover { text-decoration: none; }

   A pseudo-class like this should be no harder to implement or more
expensive than :target. Any thoughts on this?