main > .container {
  padding: 60px 15px 0;
}

.aboutlink {
  color: #212529;
  text-decoration: none;
}

h3.card-title {
    margin-bottom: 0;
}

#btn-back-to-top {
    position: fixed;
    bottom: 10px;
    right: 10px;
    display: none;
    width: 2.8125rem;
    height: 2.8125rem;
    border-radius: 50%;
    box-shadow: 0 2px 5px 0 rgba(0,0,0,.2),0 2px 10px 0 rgba(0,0,0,.1);
}

.mb-6 {
    margin-bottom: 4rem !important;
}

.mt-6 {
    margin-top: 4rem !important;
}