h4.list-group-item-heading {
    color: #000;
}

.explainer .info h4 {
    font-size: 2em;
}

.explainer ul li {
    font-size: 16px;
}

.nav-pills li.active h4.list-group-item-heading {
    color: #fff;
}

.nav-pills > li > a {
    background-color: #c5c5c5;
    margin: 10px;
    border-radius: 0px !important;
}

.nav-pills > li.active > a, .nav-pills > li.active > a:hover, .nav-pills > li.active > a:focus {
    background-color: #ea7c11 !important;
}

.nav-pills li.active p.list-group-item-text {
    text-align: center;
    color: #ffffff;
}

p.list-group-item-text {
    text-align: center;
    color: #000;
}

.nav > li > a:hover, .nav > li > a:focus {
    text-decoration: none;
    background-color: #a0ca22;
}

.row.card-img p {
    text-align: center;
}

.explainer {
    min-height: 300px;
    padding: 0 5% 30px 5%;
}

    .explainer h5 {
        font-size: 18px;
        font-weight: bolder;
    }

    .explainer .info {
        padding-top: 30px;
        padding-left: 50px;
    }

.back-img {
    background-size: cover; /* <------ */
    background-repeat: no-repeat;
    background-position: center center;
    min-height: 300px;
}

.user-registration .back-img {
    background-image: url("../images/how/Step-1.jpg");
    background-size: contain;
    min-height: 275px;
    margin-top: 30px;
}

.issue-registration .back-img {
    background-image: url("../images/how/Step-2.jpg");
    background-size: contain;
    min-height: 275px;
    margin-top: 30px;
}

.request-expert .back-img {
    background-image: url("../images/how/Step-4.jpg");
    background-size: contain;
    min-height: 275px;
    margin-top: 30px;
}

.expert-accept .back-img {
    background-image: url("../images/how/Step-3.jpg");
    background-size: contain;
    min-height: 275px;
    margin-top: 30px;
}

.issue-resolution .back-img {
    background-image: url("../images/how/Step-5.jpg");
    background-size: contain;
    min-height: 275px;
    margin-top: 30px;
}