#table-of-contents {
   background: aliceblue;
   padding: 10px;
}

#table-of-contents ul {
   background: aliceblue;
   padding: 10px;
}

.faq-collapsible {
   background-color: #f1f1f1;
   padding: 10px;
   border-radius: 5px;
   margin-bottom: 10px;
   cursor: pointer;
   font-size: large;
   position: relative;
}

.faq-collapsible::after {
   content: "\25B8";
   /* Unicode for right-pointing triangle */
   position: absolute;
   font-size: larger;
   top: 50%;
   right: 20px;
   transform: translateY(-50%);
   transition: transform 0.3s ease;
}

.faq-collapsible.active::after {
   transform: translateY(-50%) rotate(90deg);
}

.faq-content {
   display: none;
   overflow: hidden;
}