diff --git a/conservancy/supporters/templates/supporters/sustainers_stripe.html b/conservancy/supporters/templates/supporters/sustainers_stripe.html
index 1abaa7ca..8fff4d14 100644
--- a/conservancy/supporters/templates/supporters/sustainers_stripe.html
+++ b/conservancy/supporters/templates/supporters/sustainers_stripe.html
@@ -135,7 +135,7 @@
             </fieldset>
           </div>
 
-          <div class="mt3"><button type="submit" class="pointer btn f5 pv2" style="width: 100%; font-weight: bold; color: white; background-color: var(--orange); border-radius: 0.5rem; border: none; border-bottom: 2px solid rgba(0,0,0,0.1);">Click here to become a Sustainer by<br>Credit Card or <abbr title="US Bank Direct Debit">ACH</abbr></button></div>
+          <div class="mt3"><button type="submit" class="pointer btn f5 pv2 grow shadow-5" style="width: 100%; font-weight: bold; color: white; background-color: var(--orange); border-radius: 0.5rem; border: none; border-bottom: 4px solid rgba(0,0,0,0.1);">Click here to become a Sustainer by<br>Credit Card or <abbr title="US Bank Direct Debit">ACH</abbr></button></div>
         </fieldset>
       </form>