body {
   background-color: #373A3C;
}

h2.card-header > img {
   width: 100%
}
/*
#nav-drawer {
   background-color: red;
}

nav.list-group {
   border: 2px solid #373A3C;
}

div.card {
   border: 2px solid red;
   background-color: #DFDFDF;
}

.course-content ul li.section.main {
	border-bottom: 1px solid #373A3C;
}

.course-content .section-summary {
	border: 1px solid #373A3C;
}
*/