* {
    font-family: Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.flex-container {
    background: linear-gradient(rgba(0, 17, 65, 0.93), rgba(0, 17, 65, 0.93)), url(../images/background.jpg);
    background-size: cover;
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.flex-item {
    filter: invert(98%) sepia(2%) saturate(9%) hue-rotate(10deg) brightness(100%) contrast(106%);
    margin: 1.25rem;
}

.message {
    font-size: 1.125rem;
    max-width: 32rem;
}