body 
    {
        background-color: aqua;
    }

h1, h2 
    {
        text-align: center;
    }

.bar {
        fill:aquamarine;
        cursor: pointer;
        transition: fill 0.2s ease;
        
      }
  
      
.bar:hover {
        fill:plum;
      }
  
     
.selected {
        fill: purple;
      }