diff --git a/app/index.html b/app/index.html
index 344b1f2..1887466 100644
--- a/app/index.html
+++ b/app/index.html
@@ -71,11 +71,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >音樂</a
@@ -87,11 +87,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >戲劇</a
@@ -103,11 +103,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >設計</a
@@ -119,11 +119,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >藝術</a
@@ -135,11 +135,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >美食</a
@@ -151,11 +151,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >旅遊</a
@@ -167,11 +167,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >電影</a
@@ -183,11 +183,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >親子</a
@@ -199,11 +199,11 @@ <h2 class="fw-bold text-white | mb-2">台北當代藝術展</h2>
           class="
             nav-link
             link-dark
-            |
+
             pt-0
             pb-1
             px-18
-            |
+
             hvr-underline-from-center
           "
           >期間限定</a
@@ -310,12 +310,12 @@ <h2 class="h6 fw-bold mb-0 me-2">2020 台味設計展</h2>
                 >
                   <a
                     href="info.html"
-                    class="btn btn-primary me-1 py-2 px-5 | hvr-shrink"
+                    class="btn btn-primary me-1 px-5 | hvr-shrink"
                     >購買票券</a
                   >
                   <a
                     href="#"
-                    class="btn btn-outline-primary py-2 px-5 | hvr-shrink"
+                    class="btn btn-outline-primary px-5 | hvr-shrink"
                     >收藏展覽</a
                   >
                 </div>
@@ -403,12 +403,12 @@ <h2 class="h6 fw-bold mb-0 me-2">No.22 線上設計展</h2>
                 >
                   <a
                     href="info.html"
-                    class="btn btn-primary me-1 py-2 px-5 | hvr-shrink"
+                    class="btn btn-primary me-1 px-5 | hvr-shrink"
                     >購買票券</a
                   >
                   <a
                     href="#"
-                    class="btn btn-outline-primary py-2 px-5 | hvr-shrink"
+                    class="btn btn-outline-primary px-5 | hvr-shrink"
                     >收藏展覽</a
                   >
                 </div>
@@ -495,12 +495,12 @@ <h2 class="h6 fw-bold mb-0 me-2">高雄設計節</h2>
                 >
                   <a
                     href="info.html"
-                    class="btn btn-primary me-1 py-2 px-5 | hvr-shrink"
+                    class="btn btn-primary me-1 px-5 | hvr-shrink"
                     >購買票券</a
                   >
                   <a
                     href="#"
-                    class="btn btn-outline-primary py-2 px-5 | hvr-shrink"
+                    class="btn btn-outline-primary px-5 | hvr-shrink"
                     >收藏展覽</a
                   >
                 </div>
diff --git a/app/info.html b/app/info.html
index c5bcfb0..82c81f8 100644
--- a/app/info.html
+++ b/app/info.html
@@ -43,9 +43,7 @@
                   d-flex
                   justify-content-between
                   align-items-center
-                  |
                   mb-1
-                  |
                   mb-md-1
                 "
               >
@@ -101,12 +99,12 @@ <h2 class="h6 fw-bold mb-0 me-2">2020 台味設計展</h2>
             <div class="col-6 pt-md-11"data-aos="zoom-in-right"  data-aos-duration="1200">
               <a
                 href="#"
-                class="btn btn-outline-primary w-100 py-2 | hvr-shrink"
+                class="btn btn-outline-primary w-100 | hvr-shrink"
                 >收藏展覽</a
               >
             </div>
             <div class="col-6 pt-md-11"data-aos="zoom-in-left"  data-aos-duration="1200">
-              <a href="#" class="btn btn-secondary w-100 py-2 | hvr-shrink">購買票券</a>
+              <a href="#" class="btn btn-secondary w-100 | hvr-shrink">購買票券</a>
             </div>
           </div>
         </div>
diff --git a/app/order-info.html b/app/order-info.html
index a3a7fcb..d06dec1 100644
--- a/app/order-info.html
+++ b/app/order-info.html
@@ -218,7 +218,6 @@ <h2 class="fs-7 fw-bold mb-0">No.22 線上設計展</h2>
                       <div
                         class="
                           d-md-flex
-                          |
                           d-none
                           flex-column flex-md-row
                           justify-content-center
@@ -324,7 +323,6 @@ <h2 class="fs-7 fw-bold mb-0">高雄設計節</h2>
                       <div
                         class="
                           d-md-flex
-                          |
                           d-none
                           flex-column flex-md-row
                           justify-content-center
@@ -511,7 +509,7 @@ <h3 class="h6 fw-medium mb-6">訂購人資訊</h3>
                 <p class="h6 fw-medium mb-0">NT$1000</p>
               </li>
             </ul>
-            <div class="d-flex mt-2 mt-lg-0 mb-12 mb-lg-0">
+            <div class="d-flex mt-2 mt-lg-0 mb-12">
               <a
                 href="order.html"
                 class="btn btn-outline-primary w-50 me-5 d-lg-none | hvr-shrink"
diff --git a/app/order.html b/app/order.html
index f5d2a71..3dfba2b 100644
--- a/app/order.html
+++ b/app/order.html
@@ -114,7 +114,6 @@ <h2 class="fs-7 fw-bold mb-0">2020 台味設計展</h2>
                       <div
                         class="
                           d-md-flex
-                          |
                           d-none
                           flex-column flex-md-row
                           justify-content-center
@@ -220,7 +219,6 @@ <h2 class="fs-7 fw-bold mb-0">No.22 線上設計展</h2>
                       <div
                         class="
                           d-md-flex
-                          |
                           d-none
                           flex-column flex-md-row
                           justify-content-center
diff --git a/app/payment-info.html b/app/payment-info.html
index 87957f9..aa176bd 100644
--- a/app/payment-info.html
+++ b/app/payment-info.html
@@ -112,7 +112,6 @@ <h2 class="fs-7 fw-bold mb-0">2020 台味設計展</h2>
                       <div
                         class="
                           d-md-flex
-                          |
                           d-none
                           flex-column flex-md-row
                           justify-content-center
@@ -496,7 +495,7 @@ <h3 class="h6 fw-medium mb-6">付款資訊</h3>
                 <p class="h6 fw-medium mb-0">NT$1000</p>
               </li>
             </ul>
-            <div class="d-flex mt-2 mt-lg-0 mb-12 mb-lg-0">
+            <div class="d-flex mt-2 mt-lg-0 mb-12">
               <a
                 href="order-info.html"
                 class="btn btn-outline-primary w-50 me-5 d-lg-none | hvr-shrink"