when I try to border the post container, the bottom line doesn't appear, can anyone help me?



this is the only modification I did in the theme:

Make sure there are no other border styles toward the bottom of the post container box. You could also shorten your code to

border: 2px solid #000;

Now I see that there was another border, but I didn't see it before because the css codes was hided, I needed to press "DEL" to see the codes.



hided codes:



In 3.4.9, when I press enter it add a line to put codes, but now nothing happens.

In Google Chrome appear a option to extend the text-box:

That problem is usually caused by a plugin conflict. Try deactivating your plugins. If that fixes it reactivate one at a time to see which one is the problem.

thank you, I deactivated all my plugins and fixed this problem.