first of all when u start coding u need apache ,mysql etc on ur localhost
but there is some helpful tools what can help out first of them is rapache
https://launchpad.net/rapache
this is very helpful because it's log lists all missing elements of ur new page
next one is web developers addon for mozilla firefox
https://addons.mozilla.org/en-US/firefox/addon/60
whell this one have all best feathures like u can look at part of css in ur page (like in attached image)(helps to see what part of css edit to change color ore something like that)
have validaton tools and error console what says what's wrong in what line of code
and easy to use
have fun ..
