Step to reproduce: 1. Open Editor Demo in Chrome and change the font size in the developer console (the F12 button) for the text; 2. enter some text separated by paragraphs (e.g. “Test Test”) 3. Put the cursor before the second “Test” text and press the Backspace button on the keyboard. Actual result: The size of the text has been changed. Expected result: The size must be the same as it was before the Backspace button was clicked. Notes: The issue reproducible only in Chrome.