You only copy 3 code lines in your HTML site and you get the chat on your homepage. The address field of the browser displays always the URL of your own site. Its also possible to post with the mobile phone in the chat, when its integrated in your web site.
The layout of the chat list can be designed absolut independently by using one of the following variants:
Choose a layout from one of the precasted skins.
Create from a CSS draft an own design, which is completly adjusted to your homepage.