.alert_msg{
    background-color: red;
    width: 100%;
    display: none;
    color: white;
    font-weight: bold;
    padding: .5%;
    text-align: center;
}
.warning_text{
    animation-name: text_anim;
    animation-duration: 1s;animation-iteration-count: 10;
}
@keyframes text_anim {
    from {color: white}
    to {color: red;}
}