Hello @Joyce82
Thanks for writing to us
I checked your website it seems that your custom CSS code is not working because your given section ID is not correct. You can not add integer character at the beginning of the ID.
Your section ID 3features correct way to add section ID features3 in case if you want to add integer or number character in Section ID
So the correct selector to render your custom CSS code would be #features3.e74-30.x-section
Please edit your section ID in order to render your custom CSS code.
Alternatively, you can go to your Section setting and you can set the padding from the Padding Settings.
In case if you are not able to see the section Padding settings please click on the Settings Icon and check for “ Advanced Mode” option. Please set “Advanced Mode” as “ON” to get more design controls when inspecting an element in the builders.
Please have a look at the screenshot given below.
Thanks