.scanner-bar {
    height: 30px;
    width: 80%;
    background: #ccc;
    margin: 10px auto;
    position: relative;
    overflow: hidden;
    border-radius: 5px;
}

.scanner-fill {
    height: 100%;
    width: 0;
    background: green;
    text-align: center;
    line-height: 30px;
    color: white;
    font-weight: bold;
    transition: width 0.5s linear;
}

.scan-step span {
    display: block;
    font-size: 18px;
    margin-bottom: 5px;
}