Using these styles in your website is as easy as copying the JSON on any style page and passing this to the map options of any Google Maps object. If you are creating your own HTML and JavaScript website be sure to read up on the Google Maps API and if this code is still too technical check out the Google MapBuildr and just pick and choose the settings you want.
Gridder is a jQuery plugin that displays a thumbnail grid expanding preview similar to the effect seen on Google Images.