1. In the sample code for the simple app you built in this chapter, you listened for a click event to change the color. Although this works on a mobile device, it is less responsive than using touch...

1. In the sample code for the simple app you built in this chapter, you listened for a click event to change the color. Although this works on a mobile device, it is less responsive than using touch events. Modify the code to use the on touch start event instead.2.
When a user fi rst visits your mobile web app, the address bar of the mobile browser remains visible, reducing the amount of space available for your user interface. For this exercise, overcome this by scrolling the page up by one pixel.