Add Sanitize.css

https://csstools.github.io/sanitize.css/

scss/content/_accessibility.scss

@@ -0,0 +1,51 @@
+/**
+ * Accessibility & User interaction
+ */
+
+
+// Reboot based on :
+// - normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css
+// - sanitize.css v12.0.1 | CC0 1.0 Universal | github.com/csstools/sanitize.css
+// ––––––––––––––––––––
+
+// Accessibility
+
+// Change the cursor on busy elements in all browsers (opinionated)
+[aria-busy="true"] {
+  cursor: progress;
+}
+
+// Change the cursor on control elements in all browsers (opinionated)
+[aria-controls] {
+  cursor: pointer;
+}
+
+// Change the cursor on disabled, not-editable, or otherwise inoperable elements in all browsers (opinionated)
+[aria-disabled="true"],
+[disabled] {
+  cursor: not-allowed;
+}
+
+// Change the display on visually hidden accessible elements in all browsers (opinionated)
+[aria-hidden="false"][hidden] {
+  display: initial;
+}
+
+[aria-hidden="false"][hidden]:not(:focus) {
+  clip: rect(0, 0, 0, 0);
+  position: absolute;
+}
+
+// User interaction
+// Remove the tapping delay in IE 10
+a,
+area,
+button,
+input,
+label,
+select,
+summary,
+textarea,
+[tabindex] {
+  -ms-touch-action: manipulation;
+}