There are many ways to add padding to your text block in Mailchimp, but I am going to share two quick ways for people who don't want to deal with code.

#1 Use "Boxed Text"

#2 Use a tiny bit of HTML which you can cut and paste into a text block:

<table align="”center”" border="0”" cellpadding="10" cellspacing="0" width="”600”">
<td style="text-align: left;">Your text here</td>