diff --git a/timer/plugin.js b/timer/plugin.js
index 47948c7..5c6e3bf 100644
--- a/timer/plugin.js
+++ b/timer/plugin.js
@@ -1,19 +1,30 @@
 import Inspire from "@inspirejs/core";
 
+export const hasCSS = true;
+
 Inspire.hooks.add("init-start", me => {
 	// Create timer, if needed
-	this.duration = document.body.getAttribute("data-duration");
+	let duration = document.body.getAttribute("data-duration");
 
-	if (this.duration > 0) {
+	if (duration > 0) {
 		document.body.insertAdjacentHTML(
 			"beforeend",
-			`<div id="timer" style="transition-duration: ${this.duration * 60}s;"></div>`,
+			`<div id="timer" style="transition-duration: ${duration * 60}s;"></div>`,
 		);
 
-		addEventListener("load", evt => {
+		// Start the countdown on load — or right away if the plugin loaded after
+		// the load event already fired, so a late load isn't missed.
+		let start = () => {
 			timer.className = "end";
 
-			setTimeout(() => timer.classList.add("overtime"), this.duration * 60000);
-		});
+			setTimeout(() => timer.classList.add("overtime"), duration * 60000);
+		};
+
+		if (document.readyState === "complete") {
+			start();
+		}
+		else {
+			addEventListener("load", start);
+		}
 	}
 });