Try using the window maximize/reduce/minimize toggle in the upper right of your screen near the "close window" X. When you are on the middle or reduced setting, then shrink the window from one corner toward the center until you can see all of both scrolling bars.
If you are using Chrome, which is preferred, go to the top right corner where there are three dots in a row. The 7th option down is a Zoom toggle with -/+ to adjust.
The shortcut for screen adjustment is to hold down Ctrl and click the minus key, "-" to decrease the zoom.
When you leave the screen and want to reset it, click inside the magnifying glass in the URL address line. There will be a Reset option.
On my mac toolbar at very top of page, I clicked on "view", and then " Hide Toolbar". It made the page just enough smaller to be able to click on turbotax buttons at the bottom of the page.