diff --git a/src/components/molecules/grain-comment-input.js b/src/components/molecules/grain-comment-input.js
index e6543bc..790db2e 100644
--- a/src/components/molecules/grain-comment-input.js
+++ b/src/components/molecules/grain-comment-input.js
@@ -56,14 +56,13 @@ export class GrainCommentInput extends LitElement {
       color: var(--color-accent);
       font-size: var(--font-size-sm);
       font-weight: var(--font-weight-semibold);
+      min-width: 32px;
+      min-height: 20px;
     }
     .send-button:disabled {
       opacity: 0.5;
       cursor: not-allowed;
     }
-    grain-spinner {
-      --spinner-size: 16px;
-    }
     .focus-photo {
       position: relative;
       flex-shrink: 0;
@@ -154,7 +153,7 @@ export class GrainCommentInput extends LitElement {
           ?disabled=${!canSend}
           @click=${this.#handleSend}
         >
-          ${this.loading ? html`<grain-spinner></grain-spinner>` : 'Post'}
+          ${this.loading ? html`<grain-spinner size="16"></grain-spinner>` : 'Post'}
         </button>
       </div>
     `;