Drop non-required 'pad-vertical' css rule

assets/custom.css

@@ -3,10 +3,6 @@
     text-align: center;
 }
 
-.pad-vertical {
-    padding: .5em 0;
-}
-
 dl dt,
 dl dd {
     margin-bottom: .25em;

layouts/shortcodes/random_image.html

@@ -12,7 +12,7 @@ document.addEventListener("DOMContentLoaded", function() {
   if (!container || !choices) { return; }
   const img = document.createElement("img");
   img.alt = "{{ $alt }}";
-  img.classList.add("centered", "pad-vertical");
+  img.classList.add("centered");
   img.src = choices[Math.floor(Math.random() * choices.length)];
   container.appendChild(img);
 })

layouts/shortcodes/resource_image.html

@@ -8,5 +8,5 @@
 {{- end }}
 {{- $img := resources.Get $src | resources.Fingerprint }}
 <p>
-  <img class="centered pad-vertical" src="{{ $img.RelPermalink }}" alt="{{ $alt }}">
+  <img class="centered" src="{{ $img.RelPermalink }}" alt="{{ $alt }}">
 </p>