Hi there,
the CSS provided in the article i linked to uses this CSS to add the icons:
a.flex-next::after {
visibility: visible;
content: '\f054';
font-family: 'Font Awesome 5 Free';
margin-right: 10px;
font-size: 20px;
font-weight: bold;
}
a.flex-prev::before {
visibility: visible;
content: '\f053';
font-family: 'Font Awesome 5 Free';
margin-left: 10px;
font-size: 20px;
font-weight: bold;
}
Instead you could output an image by using this code instead:
a.flex-next::after {
visibility: visible;
content: url('full_url_to_your_image/image.png');
margin-right: 10px;
}
a.flex-prev::before {
visibility: visible;
content: url('full_url_to_your_image/image.png');
margin-left: 10px;
}
You will need to make sure the image is the exact size you want it displayed, as it cannot be altered with CSS using this method.