#banner
        {
                background-image: url('../../images/banner_bb.webp') !important;
        }


#lecture_overview h4
{
	margin-top: 1.5rem;
}

.corner-up {
    display: inline-block;
    transform: rotate(180deg);
    /* optional: tweak vertical-align so it sits on your text-baseline */
    vertical-align: middle;
  }

.lec_subhl
{
	font-style: italic;
	margin-bottom: 0.75rem;
}