title: pandas - highlight duplicates data row
body: <p>To improve my question</p>
  
  <p>How to check if there are same Cntr_No and same Total_Amount</p>
  
  <p>'HLBU 1234567'and 100 is duplicate.</p>
  
  <p>data:</p>
  
  <pre><code> df1 = pd.DataFrame({'Cntr_No': ['HLBU 1234567','HLBU 1234567'], 'Total_Amount': [100,100]})
   df2 = pd.DataFrame({'Cntr_No': ['HLBU 1234567','HLBU 1234567'], 'Total_Amount': [100,100]})    
  </code></pre>
  
  <p>output:</p>
  
  <pre><code>  Cntr_No         Total_Amount     Duplicate
  0  HLBU 1234567           100         Yes
  1  HLBU 1234567           100         Yes
  </code></pre>