.messagebox {
    text-align: center;
    font-weight: bold;
    position: absolute;
    width: 100%;
    left: 0;
}

.messagebox span {
    display: inline-block;
    z-index: 2048;
    position: relative;
    max-width: 30em;
    margin: 0.5em;
    padding: 0.25em;
    border-radius: 4px;
}

.messagebox-brown span {
    border: 1px solid rgb(204, 204, 204);
    background-color: rgb(248, 233, 161);
}

.messagebox-red span {
    border: 1px solid rgb(204, 204, 204);
    background-color: rgb(248, 100, 100);
}

.messagebox-gray span {
    border: 1px solid #909090;
    background-color: #f0f0f0;
}