.message-box {
    display: none;
    margin: 10px;
    padding: 8px;
    border-radius: 10px;
    outline-style: solid;
    outline-width: 2px;

    background-color: lightgray;
    outline-color: gray;
}

.message-box.info {
    background-color: lightblue;
    outline-color: blue;
}

.message-box.error {
    background-color: lightpink;
    outline-color: red;
}