Adding borders around the sub box

Hello @zeokar,

Could you provide us your site URL so that we can check your site and find a better solution?

Best regards.

Hello Again,

You can change add custom css on
Dashboard > Appearance > Design Options > Custom CSS.
There You’ll get a section to add your custom css. For your purpose, you could add following CSS code inside the box below Custom CSS.

aside#blog_subscription-3 {
border: 1px solid #289DCC;
}

Best Regards.

Hello Again,

Just add following CSS code as mentioned before:

#subscribe-submit {
	margin-bottom: 0;
}

#subscribe-email input {
	margin: 0;
}

It should work.

Best Regards.