On the Transactions page, the button "Add to cash" or "Add to X account" changes to "Add transaction" when the browser window is reduced to a smaller screen width. When that happens, the quick-add options to the different accounts disappear from the dropdown menu, which will then only show "Create transfer" and "Create from recurring".

This also means that instead of the account field defaulting to the selected account (i.e. "Tangerine Checking" when the button reads "Add to Tangerine Checking"), reducing the screen size causes the button to change to "Add to cash" and the account field in the 'Add new transaction' side panel defaults to "cash" instead of maintaining the same account that was selected while the screen was wider.

Additinoally, if the window size is significantly narrow, the Quick search appears beneath the 'Add Transaction' button, and the drop-down menu hides behind it.