Update alcohol.html

Author: david-evans84-NHSD

app/views/david/alcohol.html

@@ -23,7 +23,15 @@ <h1>
         For example, you might drink 3 small (125ml) glasses of wine or 4 pints or cans of strong beer or cider at the weekend, or a glass of whisky every evening.
       </div>
 <h3>Enter all that apply</h3>
-
+<div class="nhsuk-form-group">
+  <label class="nhsuk-label" for="example">
+    Weight in kilograms
+  </label>
+  <div class="nhsuk-input__wrapper">
+    <input class="nhsuk-input nhsuk-input--width-5" id="example" name="example" type="text">
+    <div class="nhsuk-input__suffix" aria-hidden="true">kg</div>
+  </div>
+</div>
     </div>  
 
   </div>