body{
    background-color: black;
    color: white;
}

.container{
    border: 2px solid white;
    text-align: center;
    width: 40%;
    margin-top:  10%;
    margin-left: 30%;
    height: 100%;
}

button{
    border: none;
    border-radius: 5%;
    height: 30px;
}

.end{
       border: 2px solid white;
    text-align: center;
    width: 40%;
 
    margin-left: 30%;

    height: 40px;

    
   }
#cong{
     /* Vertical center */
  height: 100px;           /* Example height */
text-align: left;
  color: white;
  padding-left: 3%;
  padding-top: 3%;

}