body {
  padding-top: 56px;
}

/* header */
.navbar {
  min-height: 56px !important;
  color:#555;
}

.navbar-expand-md {
  padding: 10px 15px;
}

.navbar-nav > li > a {
  padding-top: 10px !important;
  padding-bottom: 10px !important;
}