Now online casinos are becoming more widespread, you will find a wide variety of casinos to choose from. It is not just the themes of the casinos that are different, but also the platforms on which they are built on. It is now possible to play at online casinos on mobile devices, so you do not have to just play them on your computer.
The mobile casinos are usually built on HTML5, which allows the site to be re-sized so it is all in proportion when viewed on the smaller mobile screens. Then there are flash casinos too, which are not as common now as HTML5, but still available nevertheless. So you do have a lot of options when it comes to where and how you play at an online casino.
Then you have the different themes that the online casinos create for themselves. You can find casinos that have a more traditional feel, while others offer a more modern feel. So again it is about finding the casinos that you feel more comfortable with and want to spend your time (and money) at.