.success-msg {
    display: none;
    position: fixed;
    width: 300px;
    height: 40px;
    line-height: 40px;
    background-color: #29aba4;
    color: #fff;
    top: 100px;
    left: 0;
    right: 0;
    margin: auto;
    text-align: center;
    border-radius: 5px;
}