briefcase.css

/* Prevent stderr appearing on the page. It will still be visible in the console. */
div.py-error {
    display: none;
}

/* Splash screen */
div#briefcase-splash {
    background-color:#999;
    position:fixed;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width:100%;
    height:100%;
    top:0px;
    left:0px;
    z-index:1000;
}
div#briefcase-splash p {
    text-align: center;
    color: white;
    font-size: large;
    font-family: sans-serif;
}
div#briefcase-splash.hidden {
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.2s, opacity 0.2s linear;
}
div#briefcase-splash img {
    animation: throbber 1.5s infinite;
}
@keyframes throbber {
    0% {
        transform: scale(1.2);
    }
    70% {
        transform: scale(1.0);
    }
    100% {
        transform: scale(1.2);
    }
}

/*******************************************************************
 * WARNING: Do not remove or modify this comment block, or add any
 * content below this block. Briefcase will add content here during
 * the build step.
 ******************* Wheel contributed styles **********************/