leemorgan-dev/thing.html

<div id="bannerContainer">
    <div id="errorBanner">
        <style>
            #bannerContainer{
                display: flex;
                justify-content: center;
                width: 100vw;
            }
            
            #errorBanner{
                position: fixed;
            top: 10px;
            background: red;
            color: white;
            width: 50%;
        }
        </style>

        <h2>${message}</h2>
    </div>
</div>