Yes @Robert_Petitto, you can.
Put this code in a Rich Text component:
<div style ="position: fixed;
top: 32%;
width: 65%;
height: 2%;
opacity: 1.9;
left: 20%;;
background-color: white;
border-radius: 10px;
border: 2px solid #ffffff;">
<div style ="position: fixed;
top: 32%;
width: 45%;
height: 2%;
opacity: 1.9;
left: 20%;;
background-color: red;
border-radius: 10px;
border: 2px solid #ffffff;">
and later, test it by changing the red bar’s width value manually (from 1 to 65%)
The problem here is you can do it only when position= fixed otherwise, you must use a 2nd component to get the visual effect.
Saludos!