www.wysiwygwebbuilder.com

Can I do it? How?
I'm trying, but it's not working...

I'm building a website with layout grids and testing in my iPhone. This website needs some way to show (animated) a list of clients (logos).

I setup carousel to full widt and responsive but its not working well in my mobile tests.
Neither when I tryed "flexible"...

To add a Carousel to a Layout Grid you will need to set 'Full width' to 'flexible'

Examples:
http://www.wysiwygwebbuilder.com/suppor ... asic2.html
http://www.wysiwygwebbuilder.com/suppor ... asic8.html
http://www.wysiwygwebbuilder.com/suppor ... sic10.html
http://www.wysiwygwebbuilder.com/suppor ... books.html

I did this, but the customer's logos were aligned vertically to the center.

So instead of multiple logos images on each slide should I make a single image with multiple logos to work?

The child elements of a flexible Carousel are floating (not fixed/absolute), otherwise the carousel cannot be flexible.
A flexible Carousel can have multiple elements.

Is there a way to make client logos behave properly (stay horizontal or something) in mobile, not upright? Or maybe use another tool, not the Carousel?
See an example: https://ophicina.net.br/teste/page3.php

I cannot see what you have done based on the HTML code only.
But did you set the height to 'fixed'?