/*hidden on mobile */
<style>
.image {
    background: url('https://i.postimg.cc/sDZ80cSK/ab12641b98fca738f9c213cf4f2d3952-removebg-preview.png') no-repeat;
    background-size: 100%!important;
    position: fixed;
    right: 0px;
    bottom: 0px;
    height: 420px;
    width: 300px;
    z-index: 1000;
    opacity: 1;
}
@media (max-width: 600px) {
.image{display:none;}
}
</style>
<div class="image"></div>