diff --git a/framework/core/less/forum/Composer.less b/framework/core/less/forum/Composer.less
index 2487c7dce..e7d94d25f 100644
--- a/framework/core/less/forum/Composer.less
+++ b/framework/core/less/forum/Composer.less
@@ -194,13 +194,8 @@
         }
       }
     }
-    h3 {
-      &, a, input {
-        font-size: 14px;
-      }
-      input {
-        width: 100% !important;
-      }
+    h3 input {
+      width: 100% !important;
     }
   }
   .ComposerBody-editor {
@@ -331,20 +326,22 @@
 // ------------------------------------
 // Text Editor
 
-.TextEditor {
-  & textarea {
-    border-radius: 0;
-    padding: 0 0 10px;
-    border: 0;
-    resize: none;
-    color: @text-color;
-    font-size: 14px;
-    line-height: 1.7;
+.TextEditor textarea {
+  border-radius: 0;
+  padding: 0 0 10px;
+  border: 0;
+  resize: none;
+  color: @text-color;
+  font-size: 14px;
+  line-height: 1.7;
 
-    &, &:focus, &[disabled] {
-      background: none;
-      border: 0;
-    }
+  &, &:focus, &[disabled] {
+    background: none;
+    border: 0;
+  }
+
+  @media @phone {
+    font-size: 16px; // minimum font-size required to prevent page zoom on focus in iOS 10
   }
 }
 .TextEditor-controls {
diff --git a/framework/core/less/lib/Form.less b/framework/core/less/lib/Form.less
index f1d707fe1..8f3b1de85 100755
--- a/framework/core/less/lib/Form.less
+++ b/framework/core/less/lib/Form.less
@@ -18,6 +18,10 @@
     height: 50px;
     padding: 15px 20px;
     font-size: 15px;
+
+    @media @phone {
+      font-size: 16px; // minimum font-size required to prevent page zoom on focus in iOS 10
+    }
   }
 
   .Form-group {
diff --git a/framework/core/less/lib/FormControl.less b/framework/core/less/lib/FormControl.less
index 73c562c2e..eb7312027 100755
--- a/framework/core/less/lib/FormControl.less
+++ b/framework/core/less/lib/FormControl.less
@@ -38,6 +38,10 @@
   textarea& {
     height: auto;
   }
+
+  @media @phone {
+    font-size: 16px; // minimum font-size required to prevent page zoom on focus in iOS 10
+  }
 }
 .helpText {
   font-size: 12px;