CLC-3870: Webcasts: In IE, the audio player's width exceeds the bounds of the card itself, causing some controls to fall off
https://jira.ets.berkeley.edu/jira/browse/CLC-3870
Merge pull request #2643 from christianv/CLC-3870

CLC-3870: Webcasts: In IE, the audio player's width exceeds the bounds of the card itself, causing some controls to fall off