From 8907ee09c3726675d339b1957aebb4f0b1e59fd4 Mon Sep 17 00:00:00 2001
From: Berend Bouvy <b.n.bouvy@student.tudelft.nl>
Date: Mon, 25 Nov 2024 17:01:21 +0100
Subject: [PATCH] question fix

---
 book/time_series/stationarity.md | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/book/time_series/stationarity.md b/book/time_series/stationarity.md
index 471e0c86..7ebcf323 100644
--- a/book/time_series/stationarity.md
+++ b/book/time_series/stationarity.md
@@ -82,7 +82,8 @@ $$
 
 The time series of residuals (left panel) is indeed a stationary time series.
 
-```{question} 
+:::{card} Question Stationary Time Series
+
 Which of the four options is a stationary time series?
 
 ```{figure} ./figs/stat_question.png
@@ -92,10 +93,13 @@ name: stationary_example
 ---
 Example of a stationary time series.
 ```
-    
-```{solution}
+
+````{admonition} Solution
+:class: tip, dropdown
+
 The time series in the second panel is stationary. The mean and variance are constant over time.
-```
+````
+:::
 
 
 
-- 
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