Update app.py

app.py

@@ -325,6 +325,6 @@ def run_model(input_text):
 if st.button('Submit'):
     run_model(runtext)
     
-    st.markdown('<mark>testing</mark> if this **works**', unsafe_allow_html=True)
+    st.markdown('<span style="background-color: #FFFF00">testing</span> if this **works**', unsafe_allow_html=True)
     st.text_area('Reference text', str(reference_text))