Small CSS improvements

- Helper (<small>) for <select> and <textarea>
- Better roll for a.contrast

scss/content/_form.scss

@@ -225,9 +225,13 @@ form small {
   color: var(--muted-text);
 }
 
-input + small {
-  margin-top: -$spacing-typography/1.5;
-  margin-bottom: $spacing-typography;
+input,
+select,
+textarea {
+  + small {
+    margin-top: -$spacing-typography/1.5;
+    margin-bottom: $spacing-typography;
+  }
 }
 
 // Styles for Input inside a label

scss/content/_typography.scss

@@ -115,7 +115,9 @@ a {
     &:hover,
     &:active,
     &:focus {
+      box-shadow: inset 0 -.33rem 0 var(--contrast-border-h);
       color: var(--contrast-hover);
+      text-decoration: none;
     }
 
     &:focus {
@@ -179,7 +181,7 @@ hgroup {
   *{
     margin-bottom: 0;
   }
-  
+
   > *:last-child {
     color: var(--muted-text);
     font-size: 1.125rem;