TPAC: Make low hits help support low-width devices
Inline styles were forcing the width of the low-hits help box to be
353px wide, which is wider than our target 320 width for mobile devices.
Let the help use the full available width under the 600px barrier.
Signed-off-by: Dan Scott <dscott@laurentian.ca> Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com> Signed-off-by: Dan Wells <dbw2@calvin.edu>