In the templates search box search this:
<div id="ipsLayout_sidebar" class="ipsLayout_sidebarright " data-controller="core.front.widgets.sidebar">
Open the found template and below this line add:
<div id="testtext">Text</div>
After that go into CSS and open custom.css, add the code above and edit it as you like:
.testtext{
font-size: 40px;
padding: 140px; /* This will add padding to top, left, bottom, right */
border: 1px red solid;
justify-content: center; /* Pack items around the center */
align-items: center;
color: red; /* This is the color of the text */
font-weight: bold;
display: flex;
}
If you have any questions you can quote my post.