Add responsive style to About page

src/style/molecules/_process-step.scss

@@ -3,7 +3,7 @@
     position: relative;
     display: block;
     overflow: hidden;
-    padding: 56px 32px 32px;
+    padding: 32px;
     background: $color-primary-darker;
     border-radius: 12px;
     transform: translateZ(0);
@@ -25,7 +25,7 @@
         overflow: hidden;
         width: 70%;
         max-height: 550px;
-        margin-bottom: 48px;
+        margin-bottom: 28px;
         border-radius: 6px;
 
         @include bp (sm) {
@@ -33,6 +33,7 @@
             grid-row: 1 / -1;
             width: 100%;
             height: auto;
+            margin-bottom: 48px;
         }
 
         :global(.image) {