Named one of the Top 10 Construction Achievements of the 20th Century, Hoover Dam continues to draw crowds 80 years after its creation. Attracting more than a million visitors a year, Hoover Dam is located in Black Canyon, just minutes outside of Las Vegas. On April 20, 1931, construction began on the Hoover Dam, the largest of its kind at the time. Despite the remote location and harsh working conditions, it was completed on March 1, 1936 in less than five years -- two years ahead of schedule -- and well under budget.
To add space inside your table, you can adjust cell margins or cell spacing. Cell margins are inside the table cell, like the blue arrow on the top of the graphic. Cell spacing is between the cells, like the orange arrow on the bottom.
AFAIK there is no way to change the background color of a single page. The best workaround I can think of is to create a a table that is 1x1 and expand the cell to be as big as possible. You can then change the color of the cell to be whatever you want. The downside here is that, well, it's a table, so already not ideal.