html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #ffffff;
}

#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: bold;
    font-family: sans-serif;
    color: #333;
    z-index: 100;
    /* 确保在最上层 */
    background-color: #ffffff;
    /* 增加背景色遮挡底层 */
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#loading::after {
    content: '';
    animation: ellipsis 1.5s infinite;
}

@keyframes ellipsis {
    0% {
        content: '';
    }

    33% {
        content: '.';
    }

    66% {
        content: '..';
    }

    100% {
        content: '...';
    }
}

#composeApplication {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}