ERROR LINE BLUE TEX

We work with WordPress and we are using ENDFOLD template and the
page builder AVIA. Observing the source code of the pages
we observe that many containers are created, and in the pages
click on a paragraph a border appears highlighting the entire paragraph.
The highlighting is randomly generated one paragraph if and the next
do not.
It has been proven to eliminate those elements to see if, the code existed
before, but once erased, they are generated again. We disable plugins,
We perform shortcodes cleaning in case the problem existed before
use your template and its advanced editor but without apparent improvement.
The problem is that we do not know, what tool generates a
code, if it’s something predetermined from the template, if the Page builder
AVIA is generating it or any other configuration.
A greeting.

The HTML code is the following:

“<div style = ‘padding-bottom: 10px;’ class = ‘av-special-heading
av-special-heading-h2 custom-color-heading blockquote modern-quote
avia-builder-el-40 el_after_av_textblock el_before_av_textblock
‘> <h2 class =’ ​​av-special-heading-tag ‘itemprop = “headline”> Courses
One-click lifeguard </ h2> <div class = ‘special-heading-border’> <div
class = ‘special-heading-inner-border’> </ div> </ div> </ div>
<section class = “av_textblock_section” itemscope = “itemscope”
itemtype = “https://schema.org/CreativeWork”&gt; <div class = ‘avia_textblock
‘itemprop = “text”> <div class = “vc_row wpb_row vc_row-fluid
vc_custom_1517991307426 vc_row-has-fill vc_row-o-content-middle
vc_row-flex ult-vc-hide-row “data-vc-full-width =” true ”
data-vc-full-width-init = “true” data-rtl = “false”
data-row-effect-mobile-disable = “true”>
<div class = “vc_column_container vc_col-sm-12”>
<div class = “wpb_wrapper vc_column-inner”>
<div id = “ult-carousel-19127891075c59e0740bda7”
class = “ult-carousel-wrapper ult_horizontal” data-gutter = “1”
data-rtl = “false”>
<div class = “ult-carousel-20456453775c59e0740bd63 slick-initialized
slick-slider “>
<div class = “slick-list draggable” aria-live = “polite”>
<div class = “slick-track” role = “listbox”>
<div class = “ult-item-wrap slick-slide slick-cloned” tabindex = “- 1”
data-animation = “animated no-animation” data-slick-index = “10”
aria-hidden = “true”>
<div class = “wpb_single_image wpb_content_element vc_align_center”>
<div class = “wpb_wrapper”>
<div class = “vc_single_image-wrapper vc_box_border_grey”> The Center
SOS Management Training is recognized at the national level as one of the
most important salvage </ strong> centers and
primary care in emergency situations. </ div>
</ div>
</ div>
</ div>
</ div>
</ div>
</ div>
</ div>
</ div>
</ div>
</ div> “