body {

font-size: .875rem;

}

Sidebar

.sidebar {

position: fixed;
top: 0;
bottom: 0;
left: 0;
z-index: 100;    Behind the navbar   
padding: 48px 0 0; /* Height of navbar */
box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);

}

@media (max-width: 767.98px) {

.sidebar {
  top: 3rem;
}

}

.sidebar-sticky {

position: relative;
top: 0;
height: calc(100vh - 48px);
padding-top: .5rem;
overflow-x: hidden;
overflow-y: auto; /* Scrollable contents if viewport is shorter than content. */

}

@supports ((position: -webkit-sticky) or (position: sticky)) {

.sidebar-sticky {
  position: -webkit-sticky;
  position: sticky;
}

}

.sidebar .nav-link {

font-weight: 500;
color: #333;

}

.sidebar .nav-link .feather {

margin-right: 4px;
color: #999;

}

.sidebar .nav-link.active {

color: #007bff;

}

.sidebar .nav-hover .feather, .sidebar .nav-link.active .feather {

color: inherit;

}

.sidebar-heading {

font-size: .75rem;
text-transform: uppercase;

}

/*

 Navbar
/

.navbar-brand {

padding-top: .75rem;
padding-bottom: .75rem;
font-size: 1rem;
background-color: rgba(0, 0, 0, .25);
box-shadow: inset -1px 0 0 rgba(0, 0, 0, .25);

}

.navbar .navbar-toggler {

top: .25rem;
right: 1rem;

}

.navbar .form-control {

padding: .75rem 1rem;
border-width: 0;
border-radius: 0;

}

.form-control-dark {

color: #fff;
background-color: rgba(255, 255, 255, .1);
border-color: rgba(255, 255, 255, .1);

}

.form-control-dark:focus {

border-color: transparent;
box-shadow: 0 0 0 3px rgba(255, 255, 255, .25);

}