React - Responsive Content
React allows you to create contents that are responsive to the browsr's size. It controls the size and the position of any object with a Graphic Style as a percentage of the height and width of the browser.
Control the placement of an object based on a percentage of the browser's size. So as the size of the browser changes, the object moves and maintain the ratio.
The ability to control the size as a percentage of the browser's size, allows you to create any complex responsive layouts.
Allows you to control the place of your anchors as a percentage of the browser's height.