Reading problem left bar with date

Since I put islemag on my website I have a problem. When I access with a mobile, it is difficult to read the articles due to the left bar. This line takes up a lot of space on the screen
I mean the fine line that comes out below the date. I’ve been looking for a few days to remove it but I can not find how to do it. Can anybody help me?

• This topic was modified 7 years, 2 months ago by ft981.