The default grid system provided in Bootstrap utilizes 12 columns that render out at widths of 724px, 940px (default without responsive CSS included), and 1170px. Below 767px viewports, the columns become fluid and stack vertically.
首先 ，友友用车的汽车全部都是通过租赁而来。装修设计网站使用这种古典颜色效果 ，无论在网站整体设计还是人文方面，都会给用户一种冲动的感觉 。