Tip 1. Make use of <BR> = break and NEVER &NBSP for new line. BR will not add space between 2 lines and &NBSP will do.
So remove this inside the code.
How to prevent inside the Canned Response editor: provide a hard enter = Shift + Enter button in a web editor
Tip 2. Make use of <P> = paragraph break when different section.
So to start a sentence and finish it like <p>Thank you for reaching out!<br />We will get back to you soon.</p>
And when adding a logo like <p><img src="XXX"/></p><a href="https://api-cdn.mypurecloud.de/response-" >https:="" api-cdn.mypurecloud.de...<="" a="">
Tip 3. When adding a table style, only make us of Tabel Style and NOT many Table Row (TR).
See difference based on this example code without TR and with TR.
Tip 4. Run the HTML code easily inside your AMI client after being logged in and add /experience on the end of the AMI client URL.
Like this https://demo.cloudoeapp.com/experience