Factorization of input styling.

frontend/src/app/pages/login/login.component.html

@@ -1,6 +1,6 @@
 <form [formGroup]="loginForm" (submit)="performLogin()" ngNativeValidate>
     <h1 i18n>Login</h1>
-    <div>
+    <div class="form-field">
         <mat-icon>mail</mat-icon>
         <label for="email" i18n>
             Email address
@@ -8,7 +8,7 @@
         </label>
         <input type="email" id="email" formControlName="email" autocomplete="email" required />
     </div>
-    <div>
+    <div class="form-field">
         <mat-icon>lock</mat-icon>
         <label for="password" i18n>
             Password
@@ -16,7 +16,7 @@
         </label>
         <input type="password" id="password" formControlName="password" required />
     </div>
-    <div class="actions">
+    <div class="actions reversed">
         <button type="submit" i18n>Send</button>
         <a [routerLink]="['/signin']" class="button secondary" i18n>Create an account</a>
     </div>