#alertContainer {
    opacity: 0;
    font-size: 15px;
    line-height: 1.5;
    width: 320px;
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translate(-50%,0);
    padding: 15px 50px;
    background: linear-gradient(to right, #00b09b, #96c93d);
    border-radius: 100px;
    color: #fff;
    box-shadow: 3px 4px 11px 0px #00000040;
    transition: all 0.5s;
    z-index: 9999;
}
#alertContainer.active {
    opacity: 100%;
    bottom: 50%;
}