platform independence

platform independence. How HTML and java script support 

Platform independence means the code created on any machine can execute on any machine without making any changes. Because all the operating systems will support that code.

HTML

Also provide platform independence because all the operating system support hypertext mark up language. So code written in this language can be explored on any web browser of any machine.

Java Script

Java script is developed by sun Microsystems and is derived from java, which is also supported by all the OS. So java script also provides platform independency.