Fix: solved issue of disappearing text field (apparently a browser representation bug).

app/templates/pages/project-form.html

@@ -19,8 +19,8 @@
                         <div class="w3-quarter">
                             {{ form.is_student_proposal(class="w3-check", id="is-student-proposal") }}&ensp;{{ form.is_student_proposal.label }}
                         </div>
-                        <div class="w3-rest">
-                            {{ form.on_behalf(placeholder="Student username", class="w3-input w3-border", id="student-proposer") }}
+                        <div class="w3-threequarter">
+                            {{ form.on_behalf(placeholder="Student proposer", class="w3-input w3-border", id="student-proposer") }}
                         </div>
                     </section>
                     <button type="submit" class="w3-btn w3-{{ theme_colour }}">Save</button>