bootstrap question

I made my own block to use in parallax1. This works well enough but when I write bootstrap literally instead of using shortcodes there is a problem. In the block around the text I added: Then the text .... Pretty simple. I wanted to use bootstrap columns and offset for proportional padding. It seems to work fine but then the problem is that when squeezed down to xs size the typical left and right margins are not there, the text is right up against the edge. I see that it's already in a single container, though its a custom dexp-container. My row seems to be within a column within a row so that should be ok. So the question is, what is needed to be done to use bootstrap? without shortcodes, so I can use other bootstrap classes like -offset? Yes I can just write some css another way, with percentage padding. I can write media queries. And I probably will. But it would be nice to know how to use standard bootstrap within your system. Thanks Matt