style.css

body {
    font-family: 'Source Sans Pro', sans-serif;
}

.page-content {
  position: relative;
  min-height: calc(100vh - 21vh);
  padding-bottom: 3rem;
}

.main-header .navbar-brand {
  margin-right: 2rem;
}
.main-header .navbar-brand img {
  width: 250px;
}
.main-header .navbar-brand .legend {
  display: block;
  font-size: .9rem;
  letter-spacing: .15rem;
}

.footer {
  bottom: 0;
  height: 7rem;            /* Footer height */
}

.card-columns {
    column-count: 2;
}
.main-header {
  background-color: #EE5B32;
}
.navbar {
  background-image:linear-gradient(90deg,#EE5B32,#FB7928,#EE5B32);
  background-size: 100% 130px;
  background-position-y: bottom
}

.project-idea-header {
    background-color: #fff;
    border-color: #00b5da;
    border-width: 10px;
    padding-left: 0px;
    font-size: 1.5em;
}

#back-to-top {
    cursor: pointer;
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    background-color: #00b5da;
    border: none;
}

.nav-item, .dropdown-item {
    font-size: 1.2em;
    font-weight: 900;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu {
    margin-top: 0px;
}

.navbar-dark .navbar-nav .nav-item .nav-link {
  padding-bottom: .3rem;
  color: white;
}

.navbar-dark .navbar-nav .nav-item.active .nav-link {
  border-bottom: 2px solid white;
}

.toc-card {
  width: 18rem;
  margin-bottom: 1rem;
}

.toc {
  margin-bottom: 0;
}
.main-footer .footer small {
  display: flex;
  align-items: center;
}
.main-footer .footer small .text-muted {
  margin-left: 2rem;
}