Is there a site that shows which tags work on which browsers?

Question

Which option is better for local storage at browsers? Why to use webstorage APIs when same can be achieved through Javascript objects?

Answer 1

There have been several attempts to do this, but I'm not aware of any really good source of comparisons between the browsers. The trouble is that there are many different versions of each browser, and many different tags. All current browsers should support the tags in the official HTML 3.2 specification, but the major ones also support nonstandard tags and sometimes have slightly different implementations. One place that has fairly good compatibility info is Browsercaps.