Hola @Pat
You need to use CSS in a rich text component.
<span/>
<style>
#app-root div[opacity='1'] {
color: transparent;
}
.nav-bar-root {
content: "";
display: block;
background-image:url(URL);
background-size: 200px 40px;
background-repeat: no-repeat;
background-position: center, center;
;}
</style>
Replace URL for your picture url
Also, you can find tons of CSS codes on this thread