wait-for: ".settings"
// We change the theme to "light".
click: "#theme-light"
-wait-for: 250
-assert-css: ("body", { "background-color": "rgb(255, 255, 255)" })
+wait-for-css: ("body", { "background-color": "rgb(255, 255, 255)" })
assert-local-storage: { "rustdoc-theme": "light" }
// We go back in history.