spinners, small fixes

scss/layout/_core.scss

@@ -1,6 +1,8 @@
+html {
+  height: 100%;
+}
+
 body {
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
   -webkit-tap-highlight-color: transparent;
   -webkit-text-size-adjust: none;
   -ms-touch-action: manipulation;
@@ -18,6 +20,14 @@ body *::-webkit-scrollbar {
 body *::-webkit-scrollbar-thumb {
   background: $gray-400;
 }
+
 body *:hover::-webkit-scrollbar-thumb {
   background: $gray-500;
 }
+
+/**
+Remove the cancel buttons in Chrome and Safari on macOS.
+ */
+[type="search"]::-webkit-search-cancel-button {
+  -webkit-appearance: none;
+}