Hi Mike,

Morning.
But I cannot find the avia-post-nav on my quick CSS:
here is the code I have right now:
.entry-content blockquote {
margin: 1.5em 0em!important;
font-size: 137%!important;
color: rgb(58, 140, 174)!important;
font-style: italic!important;
background: #efefef!important;
padding: 1em!important;
text-align: left!important;
quotes: “\201C””\201D””\2018″”\2019”;
}

.entry-content blockquote:before {
color: #ccc;
content: open-quote;
font-size: 4em;
line-height: 0.1em;
margin-right: 0.25em;
vertical-align: -0.4em;
}
.entry-content blockquote p {
display: inline;
}

.footer_color {
border: none;
}

/* Generated by Font Squirrel (//www.fontsquirrel.com) on April 15, 2015 */

@font-face {
font-family: ‘verbextralight’;
src: url(‘/webfonts/extralight-webfont.eot’);
src: url(‘/webfonts/extralight-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘/webfonts/extralight-webfont.woff2’) format(‘woff2’),
url(‘/webfonts/extralight-webfont.woff’) format(‘woff’),
url(‘/webfonts/extralight-webfont.ttf’) format(‘truetype’),
url(‘/webfonts/extralight-webfont.svg#verbextralight’) format(‘svg’);
font-weight: normal;
font-style: normal;

}

/*
@font-face {
font-family: ‘verbregular’;
src: url(‘/webfonts/regular-webfont.eot’);
src: url(‘/webfonts/regular-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘/webfonts/regular-webfont.woff2’) format(‘woff2’),
url(‘/webfonts/regular-webfont.woff’) format(‘woff’),
url(‘/webfonts/regular-webfont.ttf’) format(‘truetype’),
url(‘/webfonts/regular-webfont.svg#verbregular’) format(‘svg’);
font-weight: normal;
font-style: normal;

}

@font-face {
font-family: ‘verbsemibold’;
src: url(‘/webfonts/semibold-webfont.eot’);
src: url(‘/webfonts/semibold-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘/webfonts/semibold-webfont.woff2’) format(‘woff2’),
url(‘/webfonts/semibold-webfont.woff’) format(‘woff’),
url(‘/webfonts/semibold-webfont.ttf’) format(‘truetype’),
url(‘/webfonts/semibold-webfont.svg#verbsemibold’) format(‘svg’);
font-weight: normal;
font-style: normal;

}

@font-face {
font-family: ‘verbcondlight’;
src: url(‘/webfonts/yellow-design-studio-verbcondlight-webfont.eot’);
src: url(‘/webfonts/yellow-design-studio-verbcondlight-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘/webfonts/yellow-design-studio-verbcondlight-webfont.woff’) format(‘woff’),
url(‘/webfonts/yellow-design-studio-verbcondlight-webfont.ttf’) format(‘truetype’),
url(‘/webfonts/yellow-design-studio-verbcondlight-webfont.svg#verbcondlight’) format(‘svg’);
font-weight: normal;
font-style: normal;

}*/

@font-face {
font-family: ‘verbcondregular’;
src: url(‘/webfonts/yellow-design-studio-verbcondregular-webfont.eot’);
src: url(‘/webfonts/yellow-design-studio-verbcondregular-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘/webfonts/yellow-design-studio-verbcondregular-webfont.woff’) format(‘woff’),
url(‘/webfonts/yellow-design-studio-verbcondregular-webfont.ttf’) format(‘truetype’),
url(‘/webfonts/yellow-design-studio-verbcondregular-webfont.svg#verbcondregular’) format(‘svg’);
font-weight: normal;
font-style: normal;

}

@font-face {
font-family: ‘verbcondsemibold’;
src: url(‘/webfonts/yellow-design-studio-verbcondsemibold-webfont.eot’);
src: url(‘/webfonts/yellow-design-studio-verbcondsemibold-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘/webfonts/yellow-design-studio-verbcondsemibold-webfont.woff’) format(‘woff’),
url(‘/webfonts/yellow-design-studio-verbcondsemibold-webfont.ttf’) format(‘truetype’),
url(‘/webfonts/yellow-design-studio-verbcondsemibold-webfont.svg#verbcondsemibold’) format(‘svg’);
font-weight: normal;
font-style: normal;

}
/*
html, body, div, p { font-family: ‘verbregular’; }
h1, h2, h3, h4, h5, h6, strong { font-family: ‘verbsemibold’; font-weight: normal;text-transform:none!important; }*/

html, body, div, p { font-family: ‘verbcondregular’; }
h1, h2, h3, h4, h5, h6, strong { font-family: ‘verbcondsemibold’; font-weight: normal;text-transform:none!important; }

.button-transition-blue {
-webkit-transition: all .3s ease-in-out;
-moz-transition: all .3s ease-in-out;
-o-transition: all .3s ease-in-out;
transition: all .3s ease-in-out;
}

.button-transition-blue:hover {
background:#3a8cae!important;
}

.big-thin {
font-size: 1.6em;
line-height:1.2em;
font-family:’verbextralight’;
color:white;
}

.image-overlay {
visibility: hidden;
}

#top #wrap_all .header_color .av-menu-button-colored > a .avia-menu-text {
background: #f9a456!important;
border: 0px solid white;
}

.big-thin span.av_font_icon.avia_animate_when_visible.av-icon-style-.avia-icon-pos-left.avia_start_animation.avia_start_delayed_animation {
padding-bottom: 100px;
}

@media only screen and (max-width: 767px) {

.big-thin span.av_font_icon.avia_animate_when_visible.av-icon-style-.avia-icon-pos-left.avia_start_animation.avia_start_delayed_animation {
padding-bottom: 20px;
}
}

.big-thin span.av-icon-char {
line-height: 1em!important;
margin-right: 10px;
}

#top .av_header_transparency #header_meta {
border:none;
}

div#content {border-color:transparent!important;}

#top .chatlio-widget textarea {
line-height: unset!important;
min-height: unset!important;
}

/*this changes the width of the tabs */

.av-inner-tab-title {
width: 200px !important;
font-size: 13px !important;
font-weight: medium !important;
}

/*this adjusts the tab arrow */

.av-tab-arrow-container {
width: 200px !important;
}

/*this CSS styles the scroll down arrow */
#top .scroll-down-link {
/*color: #f9a456 !important; */
font-size: 150px;

}

/* This styles the animated icon list on the PS page */

.card-container {
cursor: pointer;
height: 530px;
perspective: 600;
position: relative;
width: 100%;
margin-bottom: 25px ;
}

.card {
height: 100%;
position: absolute;
border-radius: 6px;
transform-style: preserve-3d;
transition: all 1s ease-in-out;
width: 100%;
}

.card:hover {
transform: rotateY(180deg);
}

.card .side {
backface-visibility: hidden;
border-radius: 6px;
height: 530px;
position: absolute;
overflow: hidden;
width: 100%;
}

.card .back {
padding: 20px;
background: #eaeaed;
color: #606a71;
line-height: 20px;
text-align: left;
transform: rotateY(180deg);
}

/* the following css snippets adjust the icon list that is on the PS page */
.horizontal-icon-list ul.avia-icon-list li {
float: left;
clear: none;
width: 20%;
}

.horizontal-icon-list .iconlist-timeline {
display: none;
}

div.description {
position:absolute; /* absolute position (so we can position it where we want)*/
bottom:0px; /* position will be on bottom */
left:0px;
width:100%;
/* styling bellow */
background-color: #eaeaed;
color: #606a71;
}

p.description_content{
padding:10px;
margin:0px;
font-size: 15px;
}

@font-face {
font-family: ‘Font Awesome 5 Free’;
font-style: normal;
font-weight: 900;
font-display: auto;
src: url(“../webfonts/fa-solid-900.eot”);
src: url(“../webfonts/fa-solid-900.eot?#iefix”) format(“embedded-opentype”), url(“../webfonts/fa-solid-900.woff2”) format(“woff2”), url(“../webfonts/fa-solid-900.woff”) format(“woff”), url(“../webfonts/fa-solid-900.ttf”) format(“truetype”), url(“../webfonts/fa-solid-900.svg#fontawesome”) format(“svg”); }

.fa,
.fas {
font-family: ‘Font Awesome 5 Free’;
font-weight: 900; }

@media only screen and (max-width: 700px) {
.cta_text_block p {
line-height: 1.5em;
}

}

@media only screen and (max-width: 700px) {
.section_heading h2 {
line-height: 1.5em;
}

}

/* this targets the Learn More btn on the Tech services page */
.sleeknote-btn {
display: flex;
/*justify-content: space-around;*/
}

/* this adjusts the padding on the Tech services page */
.custom-btn-slknte {
padding-right: 10px;
}

/* This removes the comments from the blog */
.slide-content .slide-meta .slide-meta-comments a, .slide-content .slide-meta .slide-meta-del {
display: none;
}

/* Centers the text on blog page */
.hero-blog-entry-center {
text-align: center;
}

.hero-blog-entry-center .read-more-link {
display: block;
text-align: center;
margin: 30px auto 20px auto;
clear: both;
width: 150px;
border: none;
border-style: solid;
border-width: 2px;
border-color: #3a8cae;
padding: 10px 0;
border-radius: 5px;
}

.hero-blog-entry-center .read-more-link .more-link-arrow {
display: none;
}

.new-blog .av-masonry-entry .av-inner-masonry-content {
height: 158px;
}

.logo-bg {
position: absolute;
top: 400px;
right: -400px;
opacity: 0.05;
z-index: -10;
transform: rotate(-30deg);
}

/*—————————————-
// CSS – Content Slider style – 2
//————————————–*/

/* Slider Background */
#top .av-contentslider-style-2 {
margin: 20px 50px;
background: #ffffff;
}

/* Arrow position */
#top .av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls {
width: 100%;
position: absolute;
top: 50%;
transform: translateY(-50%);
width: 100%;
z-index: 999;
}

/* Right arrow*/
.av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls .next-slide {
right: -35px !important;
}
/* Arrow icon */
#top .av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls a.next-slide:before{
content:’\e875′;
}

/* Left arrow */
.av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls .prev-slide {
left: -35px !important;
}
/* Arrow icon */
#top .av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls a.prev-slide:before{
content:’\e874′;
font-family: ‘entypo-fontello’;
}

/* Common arrow styles */
#top .av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls a {
border-radius: 25px;
color:#fff;
font-weight: bolder;
font-size: 24px;
background: #f9a456;
width: 30px;
height: 30px;
}

#top .av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls a:before {
background: transparent;
top:3px;
}

/* Arrow hover style */
#top .av-contentslider-style-2 .avia-slideshow-arrows.avia-slideshow-controls a:hover {
opacity: 1;
background: #fab677;
}

.testimonial-cta {
background-color: rgba(255, 255, 255, 0.9);
}

/* .testimonial-col {
height: 400px;
} */

/* enfold social media icons fix */
.social_bookmarks_twitter a::before, .av-social-link-twitter a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_facebook a::before, .av-social-link-facebook a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_linkedin a::before, .av-social-link-linkedin a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_pinterest a::before, .av-social-link-pinterest a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_tumblr a::before, .av-social-link-tumblr a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_reddit a::before, .av-social-link-reddit a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_vk a::before, .av-social-link-vk a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_gplus a::before, .av-social-link-gplus a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_mail a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_dribble a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_youtube a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_instagram a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}
.social_bookmarks_vimeo a::before {
font-family: ‘entypo-fontello’;
content: ‘’;
}

/* end enfold social media icons fix */

.standards-solutions-container {
display: flex;
justify-content: space-evenly;
}

.standards-text-container {
width: 500px;
}

.testimonial-container {
display: flex;
justify-content: space-evenly;
}

.img-container-test {

}

.text-container-test {
width: 500px;
margin-right: -60px;
}

.solutions-hover:hover {
-ms-transform: translate(0, -5px);
transform: translate(0, -5px);
transition: 0.3s ease-in-out;
cursor: pointer;
}

.hero-ul-list {
width: 400px;
margin-bottom: 40px;
column-count: 2;
padding: 0;
}

.hero-ul-list li {
line-height:1.5em;
float:left;
list-style-type: square;
}

/* NEW EDIT */

h1.headerh1 {
position: absolute;
top: 100px;
z-index: 9999;
text-align: center;

}
#product-feature .flex_column {
width: 40%;
}
/* CSS Code by Agus */

@media all and (min-width:1025px){
.hero-content{
min-height:863px !Important;
}
}

/*.home-heading h1{
font-family:’verbregular’ !important;
font-size:38px !important;
color:#fff !important;
text-align:center;
line-height:1.4em;
letter-spacing:-0.5px !Important;
margin-bottom:20px !important;
}*/

.home-heading h1{
font-family:’verbcondregular’ !important;
font-size:38px !important;
color:#fff !important;
text-align:center;
line-height:1.4em;
letter-spacing:-0.5px !Important;
margin-bottom:20px !important;
}

.home-heading span.orange,
.main-heading span.orange{color:#f69345 !important}

.btn-product-tour span:before{
background:#fff !Important;
padding:9px;
border-radius:30px;
border:1px solid #fff !important;
color:#f69345 !important;
}

.btn-product-tour:hover span:before{
border:1px solid #f69345 !important;
}

.btn-product-tour .avia_iconbox_title{
margin-right:5px;
font-weight:600 !important;
}

.hero-image img{
margin-top:-485px !important;
margin-bottom:-150px;
}

.general-button span{
font-family: ‘Poppins600’ !important;
font-weight: 600 !important;
}

.products .entry-content-wrapper{
max-width:1100px;
margin:0 auto;
}

#products{
background: radial-gradient(50% 50% at 50% 50%, #3E91BA 0%, #1D62A0 100%), #2F799E;
}

.main-heading h3{
font-family: ‘verbsemibold’ !important;
font-weight: 600 !important;
}

/*.main-heading span.special_amp{
font-family:”verbregular” !Important;
font-size:1em !important;
font-style:normal !Important;
}*/

.main-heading span.special_amp{
font-family:”verbcondregular” !Important;
font-size:1em !important;
font-style:normal !Important;
}

.features{
height:400px !important;
background: rgba(255, 255, 255, 0.03);
backdrop-filter: blur(29px);
border-radius: 10px;
transition: all 0.2s ease-in-out;
border: 1px solid #5597bf;
}

.features p{
margin-right:80px !important;
}

.features:hover{
background:#fff !important;
}
.features:hover h2{
color:#f69345 !important;
}

.features:hover h4{
color:#000 !important;
}
.features:hover p{
color:#4d4d4d !important;
}
.products .flex_column_table{
margin-top:70px !important;
}

.content-slider{
overflow:visible !Important;
}

.content-slider .avia-content-slider-inner{
max-width:1140px !Important;
margin:0 auto;
}

.content-slider .slide-entry{
border-radius: 10px;
border-style: solid;
border-width: 1px 1px 1px 1px;
border-color: #00000026;
padding:12px;
}

.content-slider .slide-entry img{
border-radius:10px !Important;
}

.content-slider .slide-entry h3{
font-family:Roboto, sans-serif !important;
color: #051728 !important;
font-size: 22px !important;
font-weight: 600;
line-height: 33px;
margin-top: 4px;
max-height:98px;
overflow:hidden;
}

.content-slider a.more-link{
font-family: “Roboto”, Sans-serif;
font-size: 16px;
font-weight: 400;
line-height: 19px;
padding: 0px 0px 0px 0px;
border-radius: 0px;
color: #458350;
margin-top: 5px;
}

.content-slider .slide-content{
padding:10px !important;
}

.content-slider .avia-content-slider-inner{
overflow:visible !Important;
}

.content-slider .av_one_third,
.success-story .av_one_third{
margin-left: 3%;
width: 31.333333333333332%;
}

.content-slider .av_one_third.first,
.success-story .av_one_third.first{
margin-left:0px !important;
}

.content-slider .avia-slideshow-arrows a.next-slide{ right: -40px !important}

.content-slider .avia-slideshow-arrows a.prev-slide{ left: -40px !important}

.content-slider .avia-slideshow-arrows a.next-slide,
.content-slider .avia-slideshow-arrows a.prev-slide{
border-radius: 50px !important;
font-size: 16px !important;
height: 41px !important;
width: 41px !important;
}

.content-slider .avia-slideshow-arrows a:before{
border-radius:50px !Important;
line-height: 41px !important;
background:#f69345 !Important;
color:#fff !Important;
border:1px solid #f69345;
}

.content-slider .avia-slideshow-arrows a:hover:before{
background:#fff !important;
color:#f69345 !important;
}

.content-slider .avia-slideshow-arrows a{
top:50% !important;
opacity:1 !important;
}

.success-story h3{
display:none !Important;
}

/*.success-story h2{
font-family:’verbregular’ !important;
color:#051728 !important;
line-height:1.4em !Important;
margin-top:0px !Important;
font-weight:600;
-webkit-font-smoothing:antialiased;
}*/
.success-story h2{
font-family:’verbcondregular’ !important;
color:#051728 !important;
line-height:1.4em !Important;
margin-top:0px !Important;
font-weight:600;
-webkit-font-smoothing:antialiased;
}

.success-story p{
font-size:16px !important;
}

.success-story a.read-more{
color: #458350;
font-family: “Vern font”, Sans-serif;
font-size: 16px;
font-weight: 400;
line-height: 19px;
position:absolute;
bottom:17px;
}

.success-story .slide-entry{
min-height:463px;
border-radius:10px;
padding:15px;
border-style: solid;
border-width: 1px 1px 1px 1px;
border-color: #D9D9D9;
transition: background 0s, border 0s, border-radius 0s, box-shadow 0s !Important;

}

.success-story .slide-entry-wrap{
padding:0px 20px;
margin:0 auto !Important;
}

.success-story .avia-slideshow-arrows {
position: absolute !important;
width: 100% !important;
top: 50% !important;
left: 0;
height: 41px;
}

.success-story .avia-slideshow-arrows a{
height:41px !Important;
width:41px !important;
line-height:41px !important
}

.success-story .avia-slideshow-arrows a:before{
line-height:41px !important;
font-size:16px !important
}

.success-story a:before{
border:none !Important
}

.success-story a.prev-slide{
left:-40px;
}

.success-story a.next-slide{
right:-40px !important;
}
.success-story a.prev-slide, .success-story a.next-slide{
min-width:41px !important;
border-radius:50px;
border:1px solid #f69345 !Important;
background:#f69345 !important;
color:#fff !important;
}

.success-story a.prev-slide:hover, .success-story a.next-slide:hover{
background:#fff !important;
color:#f69345 !important;
opacity:1 !important;
}

.home-subscribe{
background: rgb(255,255,255) !important;
background: linear-gradient(180deg, rgba(255,255,255,0) 75%, rgba(29,98,160,1) 75%) !important;
}

.home-footer{
background: radial-gradient(50% 50% at 50% 50%, #3E91BA 0%, #1D62A0 100%), #2F799E;
}

.home-footer img{
width:174px !Important;
}
.home-footer .avia-image-container{
text-align:left !important;
margin-bottom:20px;
}

.home-footer p{
font-size:16px;
color:#BED3E4;
padding-right:100px;
}

.home-footer h3{
font-size:20px !important;
color:#ffffff !important;
margin-bottom:20px !important;
}

/*.home-footer h5{
font-family:”verbregular” !Important;
font-size:16px !important;
color:#ffffff !important;
margin-bottom:20px !important;
}

.home-footer h6{
font-family:”verbregular” !Important;
font-size:14px !important;
color:#ffffff !important;
}*/

.home-footer h5{
font-family:”verbcondregular” !Important;
font-size:16px !important;
color:#ffffff !important;
margin-bottom:20px !important;
}

.home-footer h6{
font-family:”verbcondregular” !Important;
font-size:14px !important;
color:#ffffff !important;
}

.home-footer li{border-width:0px !Important}
.home-footer li a{font-size:14px !important;color:#D8E9F1 !Important;padding:5px 0px !important;line-height:1.5em !Important}

.home-footer li a:hover{background:transparent !Important;color:#D8E9F196 !important}

.home-footer .av-share-box ul li a{
width:38px !Important;
height:38px !important;
margin-right:12px;
padding-top: 10px !important;
background: #f69345 !important;
}

.home-footer .av-share-box ul li:hover a{
margin-top:-10px !important;
}

.home-copyright{
border-top:1px solid #fff !Important;
padding-top:25px;
}

.home-footer .template-page{
padding-bottom:20px !Important;
}

@media all and (max-width:1024px){
.features p{margin-right:0px !important}
.avia-section-huge .content{padding-top:60px !important;padding-bottom:60px !Important}
.main-heading{margin-bottom:20px !Important;padding-bottom:0px !Important}
.home-footer p{padding-right:50px !Important}
.hero-content{min-height:720px !Important}
}
@media all and (max-width:767px){
.home-heading h1{font-size:32px !important;line-height:1.2em !Important;}
.hero-content{padding:40px 25px 25px 25px !important}
.hero-image img{margin-top:-185px !important}
.hero-content{min-height:auto !Important}
.infographic{padding:0px !important}
#domain-expertise .av_one_half,
#professional-services .av_one_half,
#innovative-software .av_one_half{padding:0px !Important}
.products .av_one_half{padding:25px !important}
.products .first{margin-bottom:85px !Important;overflow:hidden;}
.home-subscribe {
background: rgb(255,255,255) !important;
background: linear-gradient(180deg, rgba(255,255,255,0) 85%, rgba(29,98,160,1) 85%) !important;
}
}

if you like to replace it everywhere you can try this in your child-theme functions.php:

function wrap_copyright_text_with_sup(){
?>
<script>
window.addEventListener("DOMContentLoaded", function () { 
(function($) {     
     $('body :not(script)').contents().filter(function() {
        return this.nodeType === 3;
        }).replaceWith(function() {
            return this.nodeValue.replace(/[™®©]/g, '<sup>$&</sup>');
     });
})(jQuery);
});
</script>
<?php
}
add_action('wp_footer', 'wrap_copyright_text_with_sup');

after that you can style the sup (superscript) tag:
this is default:

sup {
  top:-0.5em;
  font-size: 0.75em;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}