.heading{
    width: 100%; height: auto;
    margin: 0; 
    text-align: center;
}

.services-list{
    width: 100%; height: auto;
    list-style: none;
    margin: 0;
    padding: 0 10px; box-sizing: border-box;
    text-align: center;
    color: #f5f9fa; background-color: #303538;
    border-radius: 15px;
}

.services-list .list-item{
    width: 100%; max-width: 500px; height: 420px;
    margin: 10px;
    padding: 10px 20px; box-sizing: border-box;
    border-radius: 12px; 
    letter-spacing: 1px;
    display: inline-block; vertical-align: top;
    color: #f5f9fa; background-color: #1a1d1f;
    text-align: left;
    position: relative;
}

.services-list .list-item .heading{
    margin: 10px 0;
}

.services-list .list-item a{
    color: #f5f9fa;
    text-decoration: none;
}

.services-list .list-item .heading a{
    color: #fa8d39;
    font-size: 22px;
}


.services-list .list-item a:hover{
    color: skyblue;
}


.services-list .list-item .read-more{
    text-align: right;
    position: absolute; bottom: 0; right: 20px;
    font-size: 14px;
}

@media screen and (max-width: 630px) {
    .services-list{
        padding: 1%; box-sizing: border-box;
    }

    .services-list .list-item{
        width: 100%; height: auto;
        margin:  10px auto;
        display: block;
    }
}

.services-list .list-item .sub-list{
    width: 100%;  height: auto;
    margin: 0;
    padding: 0 40px; box-sizing: border-box;
    list-style-position: inside;

}

.services-list .list-item .sub-list .list-item{
    width: 100%;  height: auto;
    margin: 10px 0;
    padding: 0;
    text-align: left;
    border: none; border-radius: 0;
    box-shadow: none;
    display:list-item;
    font-size: 16px; font-weight: 700;
}