html,
body {
    background: linear-gradient(300deg, #cb0b0b, #2081c3);
    background-size: 100vw 100vh;
    margin: 0;
    min-height: 100vh;
    height: 100vh;
}

dialog {
    background-color: white;
    border: 0;
    border-radius: 2em;
    opacity: 0;
    transition: opacity 0.125s ease-out;
}

dialog::backdrop {
    backdrop-filter: blur(5px);
    background-color: #0008;
    transition: background-color 0.125s ease-out;

    @starting-style {
        /* This might not work on Firefox because Firefox being behind moment */
        background-color: #0000;
    }
}

dialog[open] {
    opacity: 1;

    @starting-style {
        /* This might not work on Firefox because Firefox being behind moment */
        opacity: 0;
    }
}

.flex-vcenter {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    height: 100%;
}