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Mobile First Bootstrap by Alexandre Magno

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Chapter 5. Performance Matters

We now have enough knowledge to face the Mobile First challenges. We have already launched a production site. Along the time, we will see that we are wasting vital resources and discover that our site is not really usable because it is slow. Some aspects can be optimized and doing this we can reduce the page loading time significantly. For example, why load a high-resolution image in a small device?

In this chapter, we start to think about performance from the start, and how it impacts the usability and user commitment on our site. We will see how to load responsive images and the different options to do so. Besides that, you will discover how to load external files as needed and have the flexibility that font icons ...

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