html, body { margin: 0 !important; padding: 0 !important; height: 100%; overflow: hidden; }
*, *::before, *::after { box-sizing: border-box; }
#blazor-error-ui { background:lightyellow; bottom:0; left:0; width:100%; display:none;
    padding:.6rem 1.25rem; position:fixed; box-shadow:0 -1px 2px rgba(0,0,0,.2); z-index:1000; }
#blazor-error-ui .dismiss { cursor:pointer; position:absolute; right:.75rem; top:.5rem; }