diff --git a/_sass/_forms.scss b/_sass/_forms.scss
index c8ecd158..a1f0f146 100644
--- a/_sass/_forms.scss
+++ b/_sass/_forms.scss
@@ -51,17 +51,20 @@ input,
 button,
 select,
 textarea {
-  font-family: $sans-serif;
   box-sizing: border-box;
+  font-family: $sans-serif;
 }
 
 label {
   display: block;
-  margin-bottom: 10px / 8;
-  font-weight: bold;
+  margin-bottom: 0.25em;
   color: $text-color;
   cursor: pointer;
 
+  small {
+    font-size: $type-size-6;
+  }
+
   input,
   textarea,
   select {
@@ -74,11 +77,13 @@ textarea,
 select {
   display: inline-block;
   width: 100%;
-  padding: 4px;
-  margin-bottom: 5px / 4;
+  padding: 0.25em;
+  margin-bottom: 0.5em;
+  color: $text-color;
   background-color: #fff;
   border: 1px solid mix(#fff, #000, 80%);
-  color: $text-color;
+  border-radius: $border-radius;
+  box-shadow: $box-shadow;
 
   &:hover {
     border-color: mix(#fff, $primary-color, 50%);
@@ -165,6 +170,10 @@ input[type="hidden"] {
   display: none;
 }
 
+.form {
+  position: relative;
+}
+
 .radio,
 .checkbox {
   padding-left: 18px;
@@ -315,6 +324,38 @@ select:focus {
 }
 
 
+/*
+   .form--loading
+   ========================================================================== */
+
+.form--loading:before {
+  content: '';
+}
+
+.form--loading .form__spinner {
+  display: block;
+}
+
+.form:before {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(255, 255, 255, 0.7);
+  z-index: 10;
+}
+
+.form__spinner {
+  display: none;
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  z-index: 11;
+}
+
+
+
 /*
    Google search form
    ========================================================================== */
diff --git a/_sass/_page.scss b/_sass/_page.scss
index a1343b00..420dcccb 100644
--- a/_sass/_page.scss
+++ b/_sass/_page.scss
@@ -300,6 +300,61 @@
   text-transform: uppercase;
 }
 
+.comment {
+  margin: 2em 0;
+
+  &:not(:last-child) {
+    border-bottom: 1px solid $border-color;
+  }
+}
+
+.comment__avatar-wrapper {
+  display: table-cell;
+  vertical-align: top;
+  width: 60px;
+  height: 60px;
+
+  @include breakpoint($large) {
+    width: 100px;
+    height: 100px;
+  }
+}
+
+.comment__avatar {
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+
+  @include breakpoint($large) {
+    width: 80px;
+    height: 80px;
+    padding: 5px;
+    border: 1px solid $border-color;
+  }
+}
+
+.comment__content-wrapper {
+  display: table-cell;
+  vertical-align: top;
+}
+
+.comment__author {
+  margin: 0;
+
+  a {
+    text-decoration: none;
+  }
+}
+
+.comment__date {
+  @extend .page__meta;
+  margin: 0;
+
+  a {
+    text-decoration: none;
+  }
+}
+
 
 /*
    Related
diff --git a/_sass/_utilities.scss b/_sass/_utilities.scss
index f3263585..87536a45 100644
--- a/_sass/_utilities.scss
+++ b/_sass/_utilities.scss
@@ -377,6 +377,61 @@ body:hover .visually-hidden button {
 }
 
 
+/*
+   Modals
+   ========================================================================== */
+
+.show-modal {
+  overflow: hidden;
+  position: relative;
+
+  &:before {
+    position: absolute;
+    content: "";
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    z-index: 999;
+    background-color: rgba(255, 255, 255, 0.85);
+  }
+
+  .modal {
+    display: block;
+  }
+}
+
+.modal {
+  display: none;
+  position: fixed;
+  width: 300px;
+  top: 50%;
+  left: 50%;
+  margin-left: -150px;
+  margin-top: -150px;
+  min-height: 0;
+  z-index: 9999;
+  background: #fff;
+  border: 1px solid $border-color;
+  border-radius: $border-radius;
+  box-shadow: $box-shadow;
+
+  &__title {
+    margin: 0;
+    padding: 0.5em 1em;
+  }
+
+  &__supporting-text {
+    padding: 0 1em 0.5em 1em;
+  }
+
+  &__actions {
+    padding: 0.5em 1em;
+    border-top: 1px solid $border-color;
+  }
+}
+
+
 /*
    Footnotes
    ========================================================================== */
@@ -402,4 +457,14 @@ a.reversefootnote {
   &:hover {
     text-decoration: underline;
   }
-}
\ No newline at end of file
+}
+
+
+/*
+   Required
+   ========================================================================== */
+
+.required {
+  color: $danger-color;
+  font-weight: bold;
+}