Add sections to the CSS

static/main.css

@@ -1,5 +1,7 @@
 @import url("/static/spinner.css");
 
+/* Variables */
+
 :root {
     --red: #cb0b0b;
     --blue: #2081c3;
@@ -9,6 +11,8 @@
     --medium: 1em;
 }
 
+/* Generic styling for elements */
+
 html,
 body {
     background: linear-gradient(300deg, var(--red), var(--blue));
@@ -57,6 +61,8 @@ abbr[title] {
     text-decoration-color: var(--blue);
 }
 
+/* Generic styling properties */
+
 .align-start {
     text-align: start;
 }
@@ -169,6 +175,8 @@ abbr[title] {
     aspect-ratio: 1;
 }
 
+/* Specialized elements */
+
 .iconContainer {
     width: 64px;
     height: 64px;
@@ -198,6 +206,8 @@ abbr[title] {
     margin-top: min(var(--xl), 6vh);
 }
 
+/* Animations */
+
 .pulse-red {
     animation: 1s ease-in-out 0s infinite alternate both running pulse-red-anim;
 }