How to remove the table border lines of JEM eventlist ?

Might be that after an update to you need to copy some new styles from the original (updated) css file to the override file. New functionalities in JEM might bring new styles …

Thanks jojo's suggestion to use firebug for customization work!


Thanks hekla for your comments!

hekla wrote: Might be that after an update to you need to copy some new styles from the original (updated) css file to the override file. New functionalities in JEM might bring new styles …

-> to avoid missing the new styles in future updates, I would suggest to use both files jem.css and custom.css,
That is:
(a) /media/com_jem/css/jem.css

(b) templates/YOUR-TEMPLATE/css/com_jem/custom.css
-> which stores only custom styles