See how far you are in a long read
Long articles in the reader now show how far along you are. On a wide screen, a column of small marks on the left edge follows each section as you read; hover over it to see the contents and how many minutes are left, and click any heading to jump there. On a phone, a thin line across the top fills as you go. Also fixed: a long link inside an article no longer pushes the reader sideways on a phone.