What are the three main components of responsive design?
响应式设计的三个主要组成部分是什么？
Responsive website design consists of the following three main components:
The site must be built with a flexible grid foundation.
Images that are incorporated into the design must be flexible themselves.
Different views must be enabled in different contexts via media queries.
响应式网站设计由以下三个主要部分组成：
该站点必须使用灵活的网格基础构建。
纳入设计的图像本身必须是灵活的。
必须通过媒体查询在不同的上下文中启用不同的视图。