section h3 {
   padding: 1rem 8rem;
}
section h4 {
   font-size: 2.3rem;
   padding: 2rem 0;
   text-align: center;
}
.course {
   padding: 3rem 0 0;
   /* background-color: red; */
}
.course:first-of-type {
   padding: 6rem 0 4rem;
}
.single-pages-list {
   margin: 0;
   padding-left: 1.2rem;
   display: grid;
   justify-content: center;
   grid-template-columns: repeat(3, 25%);
}
.single-pages-list a {
   text-decoration: none;
}
.single-pages-list a:hover {
   font-weight: bolder;
}

.single-pages-list li {
   position: relative;
   list-style-type: none;
   padding-left: 2.5rem;
   margin-bottom: 0.5rem;
}

.single-pages-list li:before {
   content: "";
   display: block;
   position: absolute;
   left: 0;
   top: -2px;
   width: 5px;
   height: 11px;
   border-width: 0 2px 2px 0;
   border-style: solid;
   border-color: #00a8a8;
   transform-origin: bottom left;
   transform: rotate(45deg);
}