Add some extra stylings

_sass/_block-list.scss

@@ -20,4 +20,40 @@ ol {
 	&.block>li+li {
 		padding: .2em 0 0 0;
 	}
+
+	&.subscript {
+		font-size: 0.8rem;
+		line-height: 2em;
+		counter-reset: item;
+		list-style: none;
+	}
+	&.subscript>li {
+		position: relative;
+	}
+	&.subscript>li:before {
+		content: counter(item) ")";
+		counter-increment: item;
+		vertical-align: sub;
+		position: absolute;
+		left: -1.1em;
+		top: .25em;
+	}
+
+	&.superscript {
+		font-size: 0.8rem;
+		line-height: 2em;
+		counter-reset: item;
+		list-style: none;
+	}
+	&.superscript>li {
+		position: relative;
+	}
+	&.superscript>li:before {
+		content: counter(item) ")";
+		counter-increment: item;
+		vertical-align: super;
+		position: absolute;
+		left: -1.1em;
+		top: -0.25em;
+	}
 }

_sass/_blocks.scss

@@ -2,6 +2,8 @@
 // Generic Block
 // --------------------------------------------------------------------------------
 .block {
+	display: block;
+	position: relative;
 	padding: 0;
 	margin: 0 auto;
 	overflow: auto;