What combinations of video formats and video and audio codecs can be played in most modern browsers using html5?

We want to play video with audio using the <video> tag.

What combinations of video formats and video and audio codecs can be played in most modern browsers using html5?

For example, can the files be in Quicktime container format? Can they be h.264 and MP3 inside of Quicktime and still play in most browsers? Can they be h.264 and AAC inside of Quicktime and still play in most browsers?

We do not care about Internet Explorer older than version 11. We do care about current versions of Chrome, Firefox and Safari, including their mobile versions.

Edit So according to the comment by @Widor and http://ift.tt/18ysx38 I can use the video tag, however, that page says nothing about what kind of video I can put into the video tag.