Avalonia/tests/BuildTests/BuildTests.Browser/wwwroot/app.css

/* HTML styles for the splash screen */
.avalonia-splash {
    position: absolute;
    height: 100%;
    width: 100%;
    background: white;
    font-family: 'Outfit', sans-serif;
    justify-content: center;
    align-items: center;
    display: flex;
    pointer-events: none;
}

/* Light theme styles */
@media (prefers-color-scheme: light) {
    .avalonia-splash {
        background: white;
    }

    .avalonia-splash h2 {
        color: #1b2a4e;
    }

    .avalonia-splash a {
        color: #0D6EFD;
    }
}

@media (prefers-color-scheme: dark) {
    .avalonia-splash {
        background: #1b2a4e;
    }

    .avalonia-splash h2 {
        color: white;
    }

    .avalonia-splash a {
        color: white;
    }
}

.avalonia-splash h2 {
    font-weight: 400;
    font-size: 1.5rem;
}

.avalonia-splash a {
    text-decoration: none;
    font-size: 2.5rem;
    display: block;   
}

.avalonia-splash.splash-close {
    transition: opacity 200ms, display 200ms;
    display: none;
    opacity: 0;
}