Update app.py

app.py

@@ -100,22 +100,23 @@ def get_conversation_chain(vectorstore:FAISS) -> ConversationalRetrievalChain:
     return conversation_chain
 
 
-st.markdown("""
-  <style>
-  .stSpinner {
+st.markdown (""" 
+  <style> div.stSpinner > div {
+    text-align:center; 
     text-align:center;
     align-items: center;
     justify-content: center;
-  }
+  } 
   </style>""", unsafe_allow_html=True)
 
 
+
 def main():
     st.title("SemaNaPDF📚")
     # upload file
     pdf = st.file_uploader("Upload a PDF Document", type="pdf")
     if pdf is not None:
-        with st.spinner("processing"):
+        with st.spinner(""):
             # get pdf text
             raw_text = get_pdf_text(pdf)