Certain time it’s really boring to update file through text editor and switch to browser reload page if not get proper output then switch back to editor! Instead of this you can use own custom HTML Try It like w3school’s. It’s pretty simple technique. You need to create one large textarea which contains your html… | Click here to read more.
Some time your page contains sensitive data for example your page contains images and you don’t want user download those images by right clicking, in this situation you need to disable right click. However many developers are saying “Don’t do it” because we can’t prevent users for this! However if you still want to disable… | Click here to read more.