@keyframes jst-fadein {
    from {
        background-color: transparent;
    }
    to {
        background-color: black;
    }
}
@keyframes jst-fadeout {
    from {
        background-color: black;
    }
    to {
        background-color: transparent;
    }
}

.jst-fade {
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100vw;
    height: 100vh;
    z-index: 100;
}
.jst-error {
    position: fixed;
    top: 50vh;
    left: 50vw;
    transform: translate(-50%, -50%);
    color: rgb(247, 69, 69);
    font-size: large;
    z-index: 101;
}