The default Bootstrap grid system utilizes 12 columns with each span having 30px gutter as below. Gutters are the white space between columns. Gutter width seems to be between 20px - 30px. Let's assume it's 30px here.

I want to remove the gutter space for a specific div, so that there will be no gutter space in the row. Each span will be next to each other with no gutter.
The problem is if I remove the margin 30px (gutter) it leaves 360px (12 * 30px) at the end of the row.
Given that I want to remove gutter space for a specific div only. Let's assume that it's for divs which are in the main_content div.
div#main_content div{
/*
no gutter for the divs in main_content
*/
}
How can I remove the gutter for a specific div without loosing Bootstrap responsiveness and not leaving space at the end of the row?

