Minor style fixes

public/sass/components/_alerts.scss

@@ -16,6 +16,7 @@
   border-radius: $border-radius;
   display: flex;
   flex-direction: row;
+  align-items: center;
 }
 
 // Alternate styles
@@ -62,7 +63,6 @@
 
 .alert-title {
   font-weight: $font-weight-semi-bold;
-  padding-bottom: 2px;
 }
 
 .alert-icon {

public/sass/components/_navbar.scss

@@ -117,7 +117,8 @@
 .navbar-button {
   @include buttonBackground($btn-inverse-bg, $btn-inverse-bg-hl, $btn-inverse-text-color, $btn-inverse-text-shadow);
 
-  display: inline-block;
+  display: flex;
+  align-items: center;
   font-weight: $btn-font-weight;
   padding: 6px 11px;
   line-height: 16px;