Retiring two old projects – animate-textshadow.js and CSS floating feedback button

Happy New Year! First of all I’d like to wish everyone reading a wonderful 2016 😁. New years are traditionally associated with new beginnings - clearing out the clutter of the previous year to start afresh. In that spirit, I’m retiring a couple of my old projects animate-textshadow.js and my CSS floating feedback button tutorial. I won’t be actively maintaining them anymore, and they are effectively deprecated - i.e. I wouldn’t recommend their use going forward.

Note: both projects can still be found in the Legacy section of my Projects page.


Every year that goes by sees browsers become more powerful, as new standards are adopted more and more widely. During 2015 CSS transitions and 2d transforms surpassed 90% support (according to, meaning in most cases the aforementioned projects can be replaced by a few lines of CSS -


This project was a fun one for me to cobble together - it was the first tool (to my knowledge) that allowed tweening between different text shadow states.

However, manipulating CSS ‘non-natively’ (i.e. from JavaScript) is a bit hacky. For example the plugin only handles a few units (px, pt and em) and each unit has to be handled differently. Adding the rest of the valid unit types (mm, cm, in, pc, vh, vw, rem, ex etc.) is significant work & added bloat. The same problem is true for color formats, named colors & hsl/hsla don’t work.

Parsing the CSS is done with regular expressions, which do a much poorer job than browsers’ native parsers. The plugin is much stricter about the format in which text-shadows are declared than regular CSS.

In browsers that support transitions, it’s a simple case of writing the before & after states, and adding a transition: text-shadow [...], as demonstrated below:

Hover me

.text-shadow {
  font-size: 2em;
  text-align: center;
  margin: 1em auto;
  text-shadow: none;
  transition: text-shadow 0.5s ease;
  cursor: pointer;

.text-shadow:hover {
  text-shadow: red 0 0 15px;
<p class="text-shadow">Hover me</p>

Prior to retiring the project I did merge in a PR (after a shamefully long delay 🙈) to get the plugin working with new versions of jQuery.

CSS floating feedback button

This was more a tutorial than a discrete project, specifically focusing on recreating the vertical feedback buttons that we all the rage a few years back (you still see them around a fair bit).

The tutorial is not completely obsolete, but collected together a bunch of workarounds and polyfills that were needed at the time to get any semblance of cross-browser support.

Unless you really really care about old browsers, I’d skip the SVG and IE filters stuff, and just stick with CSS transforms: {
  background: #67ab4b;
  transform: rotate(-90deg);
  border: none;
  color: #fff;
  outline: none;
  text-transform: uppercase;
  padding: 0.3em 1em;
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
<button class="feedback">Feedback</button>

Closing thoughts

It’s a little sad to retire these, but 5 years is a long time - old code needs to be ‘killed’ eventually, even if it’s still providing value to a few folks.

Oh, I should point out that the 90% figures I quoted at the top of the article are including prefixes - my example code deliberately omitted prefixes. I’d really recommend something like autoprefixer to take care of prefixes for you.

How do you deal with gracefully retiring old projects? Let me know in the comments if you have any thoughts.

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