Victoria, excuse me but I verified my homepage and the grey lines are always there.

Photo on mobile now is ok. But I still have problem with grid border. I set no border and I continue to see it. Why?

Excuse me but I put it at first in css child theme. It was ok for 1 week and than came back the same problem.
Later Ismael ask me to apply a custom css class attribute to the cell. I put there.
I can’t undestand your suggest. Sorry. Could you be clearer please?

Sorry but it’s not clear what I have to do.
Usually I insert your shirtcode in Css child theme.
After your message I turn on element options for developers and insert in the css of the element:
@media only screen and (max-width: 767px) {
.home .avia-builder-el-13 {
min-height:500px;
}
}

nothing changes.

And also what about the border?

Thanks. Perfect it works!

Thank you very muchfor solving my issue.

I flushed cache but nothing is changed. Waiting for you help. Thanks

Sorry, it was a cache reason! All is ok now. Perfect! Thanks

In your case, the plugin does not function probably because you are not loggeed.

http://www.soniavoice.it/siae-matrimonio/

Hi, try please using Opera Mobile

nothing changes..

Nothing happens on mobile screen

Please have a look to my home page testimonial animation. I put your code in css but there is a bar on the right of testimonial box. I don’t want to see it.
Thanks

You can have a look to link.
*date area has different style from *text area.

I was able to standardise size only. I would want to have same style all elements