There are additional module designs available that you can control by entering a correct suffix name as a module parameter.
If you need to mix suffixes then separate classes with some space.

1. Available module designs

2. Use the following suffix for DJ-Mediatools (Gallery Grid) module if you want to get the following view for module. Otherwise a module will use the default css styles.

Suffix name: grid-ms

3. Use the following suffix for DJ-Mediatools module, category blog or articles- category module if you want to get the following view for module. Otherwise a module will use the default css styles.

Suffix name: jm-image-shadow

4. Use the following suffix for a header module if you want to get the following view for background ( fade effects ). 

Suffix name: header-slider-ms

5. Use the following suffix for Custom HTML module if you want to get the following view for module. Otherwise a module will use the default css styles.

Suffix name: horizontal-ms

6. Use the following suffix for a single contact page. Otherwise the page will use the default css styles.

Suffix name: contact-ps

7. Additional and very useful suffix to make your modules height the same.
You just have to put a suffix at a module configuration to get the specified module height.

See here the screenshot:

_mod300 means that your module will be of 300 pixels high.