diff --git a/src/styles.el b/src/styles.el
index e2296eb..aacc408 100644
--- a/src/styles.el
+++ b/src/styles.el
@@ -282,14 +282,14 @@ fn page_open() -> String {
       transition: transform 280ms ease, opacity 200ms ease;
       transform-origin: center;
     }
-    .nav-hamburger[aria-expanded="true"] span:nth-child(1) {
+    .nav-hamburger[aria-expanded=\"true\"] span:nth-child(1) {
       transform: translateY(7px) rotate(45deg);
     }
-    .nav-hamburger[aria-expanded="true"] span:nth-child(2) {
+    .nav-hamburger[aria-expanded=\"true\"] span:nth-child(2) {
       opacity: 0;
       transform: scaleX(0);
     }
-    .nav-hamburger[aria-expanded="true"] span:nth-child(3) {
+    .nav-hamburger[aria-expanded=\"true\"] span:nth-child(3) {
       transform: translateY(-7px) rotate(-45deg);
     }