body {
    background: #fff;
}

#header {
    position: relative;
    z-index: 100;
}

.step {
    opacity: 0;
    position: absolute;
    top: -100%;
    left: 0;
    width: 100vw;
    height: 100%;
    background: #7d7d7d url(../images/business.jpg) no-repeat center / cover;
    transform: scale(0);
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step .card {
    opacity: 0;
    display: none;
    width: 100%;
    left: 0;
    bottom: 0;
}

.step .card .step-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.step .card .step-btn button {
    max-width: 75%;
    flex: 0 0 75%;
    margin: 10px auto;
}

.wrapper {
    position: relative;
    overflow: hidden;
}

.back-btn{
    position: absolute;
    top: 50%;
    left: -50px;
    color: #fff;
    font-size: 48px;
    transform: translateY(-50%);
}