Add styling and interactivity.

src/scss/timeline-event.scss

@@ -0,0 +1,18 @@
+:host {
+  display: block;
+  width: 100%;
+  height: 100%;
+}
+
+img {
+  width: 75px;
+  height: 75px;
+  box-shadow: 0px 0px 20px 5px var(--primary-background-color);
+  display: block;
+  border-radius: 5px;
+  transition: transform 0.2s linear;
+}
+
+img:hover {
+  transform: scale(1.04);
+}

src/scss/timeline.scss

@@ -1,7 +1,19 @@
-@use "vis-timeline/dist/vis-timeline-graph2d.css";
+@use 'vis-timeline/dist/vis-timeline-graph2d.css';
 
 :host {
   width: 100%;
   height: 100%;
   display: block;
-}
+}
+
+.vis-item {
+  border-color: var(--primary-color);
+}
+
+.vis-item.vis-box {
+  border-style: hidden;
+}
+
+.vis-item .vis-item-content {
+  padding: 0px;
+}