First of all make a folder and name it my website, then makes all the folder in my website folder .
like 
Audio folder
Video Folder
Image Folder 
Webpage Folder

Image placed at image folder ,video placed in video folder, audio placed in audio folder,
All the code written on notepad ++ and when save the file give the file type ,like image.html.If don't give file type .html then file don't open in web browser