Hi,
In edit mode, click on the block and select 'Design & Custom Template'. From there you can either add margin/padding by clicking on 'arrow-h' icon or use theme defined classes. For more information on second option check 'Instructions' page #30.

Thank you for your response but is there a way of setting a padding or margin value to a block only for mobile devices?
If i add a 30px margin or padding to my CTA blocks it helps in the mobile view but makes the desktop view look worse as there is a larger white space above the block.

Kindly,
Athan

It won't. If they assigned properly, you would have decent space between blocks in both devices. I am not sure which template you are using, but by investigating the sample pages created on installation, you can imitate the settings on any page. And if you couldn't figure it out, send me your site credentials via private msg and I will fix it for you.