CSS for shortcode using horizontal layout

Hello, I love this plugin. Thank you!

I would like to add a horizontal 'call to action' type layout on a page of my website using a shortcode. The layout needs to include text 'subscribe to blog' and then the input space for email address and then the subscribe button all in a row from left to right. I will also need this to include the css to change colours of the subscribe button and the background of the whole layout. Is this possible? Thank you!

2. Also, I have setup the widget on the blog page, however the subscribe button is too low. I would like to bring the button up closer to the content and make the background colour fit closer. Can you please tell me the css for this?