I would suggest looking over w3schools tutorials. The reason being that if you use a work computer or a friends computer you are going to find it very complex. It is okay to use an editor likes this as I use something similar , but I would suggest learning on a simple text editor as then you can understand the code even without the colouring and explanations etc.
Try using just notepad, this will not indent lines for you or give you any suggestions or colour guides. It's better for the long run trust me.