<PLEASE USE THIS TEMPLATE TO HELP YOU CREATE A GREAT POST, BUT DON’T DELETE ANYTHING THAT DOESN’T SAY ‘REPLACE THIS’!>
if I can write html(hyper text markup language)codes in notepad or wordpad ,where I can write the codes of css(cascading style sheets)
<BEFORE SUBMITTING YOUR TOPIC look at the box of the right of this one to see what your post will look like. Does it look good? Ok, now click +Create Topic >
The same place as you would write html. You are able to create a new file and link your html to your css. You don’t have to worry about getting a second program for that
You create a new file with .css at the end and then you create the link between your html & your css.
You may want to use a more powerful editor though, to give you some basic features like syntax highlighting, line numbers … stuff
This one covers your essential needs and is under a copyleft license that protects your freedom (yay) https://wiki.gnome.org/Apps/Gedit
There are more powerful general-purpose editors (several under questionable licenses) and a couple that specialise in front-end web development (too specific? but very useful in that scenario)