Hy you all

thanks for your suggestions. Some browsers, yes, make use of blocker. But the real helper is Catalin. I really appreciate your high quality support.
So my homework now is to discover the bad thing inside.
the row says


<div class="td-header-ad-wrap td-ad-m td-ad-tp td-ad-p" style="display: none !important;">
</div>

but the style.css at line 281
has

.single-post #td-theme-settings,
.single-post .td-header-top-menu,
.single-post .td-header-menu-wrap,
.single-post .td-header-sp-rec,
.single-post .td-main-sidebar,
.single-post .td-post-source-tags,
.single-post .td-post-sharing,
.single-post .td-post-next-prev,
.single-post .td_block_related_posts,
.single-post #comments,
.single-post .td-footer-container,
.single-post .td-sub-footer-container,
.single-post .entry-crumbs,
.single-post .td-category,
.single-post .td-post-views,
.single-post .td-post-comments,
.single-post .td-scroll-up,
.single-post iframe,
.single-post .td-more-articles-box {
display: none !important;
}

I don’t think the problem is here becasue I tried to comment this row.. the result is the same.

In only one browser I see it. the others report a lot of style coded in gray with the word
“outbrain”

this drives me nut. Because the WP setup is fresh, and really I’m disabling almost all the plugins installed.. the problem persists.

Tomorrow I retry.

EDIT: I saved a local copy to try a find-in-file
but probably this is a 64base coded injection.

Ugo