.main-content {
/*background-color: #FFF;
opacity: 0.9;*/
background-image: url(back-email.png);
}
      a.url_white {
        color: white;
		text-decoration: none;		
      }
	  a.url_white:hover {color: #808080; background-color: white;}
      
	  a.url_black {
        color: black;
		text-decoration: none;
      }
	  a.url_black:hover {color: white; background-color: black;}
	  
      a.url_yellow {
        color: yellow;
		text-decoration: none;       		
      }
	  a.url_yellow:hover {color: black; background-color: yellow;}

      a.url_orange {
        color: orange;
		text-decoration: none;      		
      }
	  a.url_orange:hover {color: white; background-color: orange;}
	  
      a.url_green {
        color: green;
		text-decoration: none;	
      }
	  a.url_green:hover {color: white; background-color: green;} 

      a.url_blue {
        color: blue;
		text-decoration: none;	
      }
	  a.url_blue:hover {color: white; background-color: blue;} 

      a.url_vio {
        color: #4327B7;
		text-decoration: none;	
      }
	  a.url_vio:hover {color: white; background-color: #4327B7;}