Lesson: Responsive Design with Bootstrap

Use the Bootstrap Grid to Put Elements Side By Side

Bootstrap uses a responsive grid system, which makes it easy to put elements into rows and specify each element's relative width. Most of Bootstrap's classes can be applied to a div element.

Here's a diagram of how Bootstrap's 12-column grid layout works:

Note that in this illustration, the col-md-* class is being used. Here, md means medium, and * is a number specifying how many columns wide the element should be. In this case, the column width of an element on a medium-sized screen, such as a laptop, is being specified.

In the Cat Photo App that we're building, we'll use col-xs-*, where xs means extra small (like an extra-small mobile phone screen), and * is the number of columns specifying how many columns wide the element should be.

Put the Like, Info and Delete buttons side-by-side by nesting all three of them within one <div class="row"> element, then each of them within a <div class="col-xs-4"> element.

The row class is applied to a div, and the buttons themselves can be nested within it.

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