What CSS3 features still need vendor prefixes?

Question

The most common features I remember needing prefixes for were features such as flexbox, border-radius, box-shadow, etc... but now they

Answer 1

There is a great site which allows you to check out support of any css property by most modern browsers. It also shows info about vendor prefixes (if they are needed). This site is named "Can I use" - http://caniuse.com