These are textareas now

app/assets/stylesheets/lexxy.css

@@ -237,6 +237,21 @@
     }
   }
 
+  .attachment__caption {
+    textarea {
+      background-color: var(--input-background, transparent);
+      border-radius: var(--input-border-radius, 0.5em);
+      border: var(--input-border-size, 1px) solid var(--input-border-color, var(--color-ink-medium));
+      color: var(--input-color, var(--color-ink));
+      font-size: max(16px, 1em);
+      inline-size: 100%;
+      line-height: inherit;
+      max-inline-size: 100%;
+      padding: var(--input-padding, 0.5em 0.8em);
+      resize: none;
+    }
+  }
+
   /* Based on .input, .input--select */
   .lexxy-code-language-picker {
     -webkit-appearance: none;

app/assets/stylesheets/rich-text-content.css

@@ -205,7 +205,7 @@
     color: color-mix(in oklch, var(--color-ink) 66%, transparent);
     font-size: var(--text-small);
 
-    .input {
+    textarea {
       --input-border-radius: 0.3em;
       --input-border-size: 0;
       --input-padding: 0;