Wlork
OK, because it's dependent on the footer element in Asirem.
You can try adding the following in your custom header:
<footer id="footer" class="App-footer"></footer>
Then, apply CSS:
@media (min-width: 1299px) {
footer#footer {
display: block;
width: 160px;
height: 420px;
background: url(https://www.subarist.net/p25_dark.png) 0px 0px no-repeat;
bottom: -120px;
right: -45px;
position: fixed;
background-size: 65% 65% !important;
z-index: var(--zindex-header);
}
}