Can I use multiple classes in the same div?

Hi, before at all… my english is not good =D

In v1, can I use multiple classes in the same div??

example:
<div class=“col-md-12 foot-gray-bg”> ORIGINAL (yes, bootstrap)

<div class=“sc-content col-md-12 foot-gray-bg”> SITECAKE v2

<div class=“sc-content-col-md-12-foot-gray-bg”> SITECAKE v1 [is this correct??]

All my pages are php (too many reassons), that’s why i can’t use SITECAKE v2

Thanks!

Multiple classes in same div are okay.