Thanks for all.
Now, i need to delete the unordered list square, but i see in theme4.css this:
.theme4_wrap ul{
list-style: none outside none;
list-style-type: none;
padding: 0px;
margin: 0px;
}
.theme4_item_li{
float: left;
/*position: relative;*/
margin: 35px 10px 20px;
background: none;
padding: 0px;
}
This indicates that no marker is shown, but the images, are with square marker. I don't understand why.

Dear Jesus,

Could you please send us your live URL and if possible, the screenshots so that we could

have closer look on the issue?

Thanks!

Thanks, but is still a project in localhost. However i add a screenshot.
I need to delete the list marker. Is a theme4 with 3 rows.

Dear Jesus,

please check "theme4.css" file again.

you are sure this line: list-style-type: none; which is really added in the following code?

.theme4_wrap ul{
list-style: none outside none;
list-style-type: none;
padding: 0px;
margin: 0px;
}

Thanks!

Ok, I check "theme4.css" file again and this is the code:

.theme4_wrap ul{
list-style: none outside none;
list-style-type: none;
padding: 0px;
margin: 0px;
}

That is my question.
they may be problems of cache?
I tried different values ​​for "list-style-type:" (square,circle,disc,...) but never changes.

Maybe, please clear cache.