Learn how to create flexible layouts using relative units in CSS. New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).
In programming development, it is very common that a piece of code could be developed, customized, re-used and deployed in many similar areas, so that we can optimize the development and configuration time needed.
Forums on the internet are sites that provide a place for those who have an interest in a specific topic to meetup virtually to share in their passion with others around the world that also have such an interest.