How do I constrain the height of my hub?
By default, your embedded social hub will scroll infinitely, increasing in length as the user scrolls down to see more content. If you wish to limit the height of the area in which your hub scrolls you can do this very easily by wrapping it in a div which limits the height and sets the overflowing content to scroll.
<div style="height: 550px;overflow: scroll;"> <!-- Place Your Embed Code Inside Here! -->
The section "height: 550px" gives the height of your hub in pixels. Change it as needed until you have the height you want.