Thumbnail alighment in Gallery

I have installed gallery addon to modx revo through package management it seems working fine.

I have used the following code in a blank template:
[[!Gallery? &album=`Faces`]

http://creativelens.in/website/index.php?id=9

The images are displaying in one below another. How can I display it side by side upto div width and then next row? I have limited knowledge in CSS but think somehow the individual div containing each images needs to get the style float=left.

Any help will be appreciated.

You can try:

And play with the margins and with the thumbnail size to get the look you want.