CSS: set color for selected row in a table

Question

I need to add the following feature to my table:

When the user clicks on a row (selects it), the row is marked with the color #FFCF8B (the same as

Answer 1

  

    
cell 1
    
cell 2
    
cell 3
    
cell 4
    
cell 5
    
cell 6
  
  

    
cell 3
    
cell 4
    
cell 1
    
cell 2
    
cell 1
    
cell 2
  
  

    
cell 5
    
cell 6
    
cell 1
    
cell 2
    
cell 1
    
cell 2
  
  

    
cell 7
    
cell 8
    
cell 1
    
cell 2
    
cell 1
    
cell 2