div#flash {
    margin: 5em auto 0;
    display: none;
}
div.flash-message-container {
    position: relative;
    left: 50%;
    float: left;
}
div.flash-message {
    color: white;
    background-color: orange;
    position: relative;
    left: -50%;
    float: left;
    padding: 0.25em 0.5em;
    margin: 1em auto -3em;
}
/*
@media screen and (max-width: 792px) {
    div#flash {
        margin: auto;
    }
    div.flash-message-container {
        position: fixed;
        left: auto;
        float: auto;
        top: 0;
        width: 100%;
    }
    div.flash-message {
        height: 3em;
        line-height: 3em;
        position: auto;
        left: auto;
        float: auto;
        width: 100%;
        padding: 1em auto;
        margin: auto;
        text-align: center;
    }
}
*/