Fix top position in iOS

public/assets/enhancements.js

@@ -7,6 +7,15 @@
 
   // When DOM is ready
   function init() {
+
+    // Check for iOS
+    if(
+      /iPad|iPhone|iPod/.test(navigator.userAgent)
+      && !window.MSStream
+      && document.body.classList
+    ) {
+      document.body.classList.add('ios');
+    }
   }
 
 })();

public/assets/style.css

@@ -409,6 +409,9 @@ footer {
     background: #fff;
     box-shadow: 0px 3px #eaeaea;
   }
+  .ios .search {
+    top: 0.4em;
+  }
   .search input {
     font-size: 20px;
     padding: 0.4em 0.2em;