Some progress was made by browsers on implementing CSS filters Show archive.org snapshot like blur, greyscale or some other effects. You might already know the legacy CSS filter attribute that old IE versions used to perform DirectX transformations. Luckily these legacy filters are removed in IE10 Show archive.org snapshot . The good news is, newest WebKit-based browsers like Chrome (18.0+) Safari and Mozilla Firefox experimentally support the CSS-filter attribute Show archive.org snapshot with a vendor prefix. Furthermore the syntax lets you also link to SVG filters that can be applied to your DOM elements.

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

• Prevents you from data breaches and liability risks
• Upgrade at your own pace
• Works with modern Rubies

Read more Show archive.org snapshot

Last but not least I would like to give you a syntax example (for simplicity without vendor prefixes):

div { filter: grayscale(100%) sepia(100%); }