Update footnote styling

assets/css/global.css

@@ -44,12 +44,20 @@ a {
 }
 
 /* Improve readability for smaller text, especially in long paragraphs */
-p, a, ul, ol {
+p,
+a,
+ul,
+ol {
     letter-spacing: 0.2px;
     line-height: 24px;
 }
 
-h1, h2, h3, h4, h5, h6 {
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
     margin-top: 2em;
     margin-bottom: 0.5em;
     font-family: 'FormaDJRDisplay', sans-serif;
@@ -67,7 +75,13 @@ h3 {
     font-size: 1.5em;
 }
 
-
 img {
     max-width: 100%;
 }
+
+sup {
+    vertical-align: 3px;
+    font-size: 12px;
+    padding-left: 2px;
+    padding-right: 2px;
+}