How to resize and enlarge cams
Make the cam dock smaller or larger by clicking or holding on the up/down arrow icon and drag/pull up or down.

This button is located just above the chat area, to the right.
Enlarge cam: Click/touch the four corner brackets icon just to the left of the "x" to enlarge the cam. Do the same, to minimize.

TIP: Your browser may offer a “Picture In Picture” mode (normally accessed by right clicking the webcam video) that allows for even larger viewing!