#container {
	Width: 960px;
	margin: 0px auto;
	font-size: 16px;
	
	
}






#left-column{
   	Width: 690px;
	float: left;
	background: #ffffff;
     
   
}

#right-column{
   	Width: 250px;
	float: right;
	background: #ffffff;

}

#test_left{
   	
	
	
    padding: 15px;
	margin-right:20px;
	background: #ffffff;
}

#test_left_1{
   	
	
	
    padding: 15px;
	margin-right:20px;
	background: #ffffff;
}

#test_left_2{
   	
	
	
    border-radius: 15px;
    background: #ffffff;
    padding: 15px;
    
border: 2px solid;	
}








#test_right{
   	
	
	
     padding: 0px;
	margin-right:20px;
	background: #ddd;
	
}



@media screen and (max-width:959px){
	      #container {
	         Width: 100%;
		  }
		  
		#left-column{
   	Width: 70%;	 
			 
		} 
			 
		
         #right-column{
   	      Width: 30%;		
			 
		             }
					 
		img{
			
			width:100%
		}
			
}
@media screen and (max-width:640px){
	
	#left-column{
   	Width: 100%;	 
			 
		} 
			 
		
         #right-column{
   	      Width: 100%;		
			 
		             }
}




			
 
			 
	
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
}

.topnav {
  overflow: hidden;
  background-color: #333;
}

.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.active {
  background-color: #4CAF50;
  color: white;
}

.topnav .icon {
  display: none;
}

@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
}