diff --git a/src/main.js b/src/main.js
index a24a2ba..bc7f0d2 100644
--- a/src/main.js
+++ b/src/main.js
@@ -33,6 +33,9 @@ Vue.mixin({
 		},
 	},
 	methods: {
+		css_var(var_name) {
+			return getComputedStyle(document.documentElement).getPropertyValue(var_name);
+		},
 		auth_expired(error = null) {
 			sessionStorage.removeItem(this.storage_key.token);
 			window.location.hash = ``;