.color-navy {color: Navy}
 .background-dodgerblue {background-color:DodgerBlue}
 h3 {font-size: 24px}
 //body {text-align: center;}
 p {font-family: verdana;font-size: 16px;}
 #Cure {font-size: 20px}
 #days {font-size: 30px}
#konten {
  background-color : white;
  width: 600px;
  padding: 10px;
  border: 5px solid gray;
  margin: 0;
 }
 h2,.center {text-align: center}
 .border {border-style: outset;color: Navy;}
 .border2 {border-style: dotted solid solid;color: rgba(39, 39, 155, 1);}
 .btn {
  border: none;
  color: white;
  padding: 14px 28px;
  font-size: 16px;
  cursor: pointer;
}
.rest {background-color: #2196F3;} /* Blue */
.rest:hover {background: #0b7dda;}

.play {background-color: #4CAF50;} /* Green */
.play:hover {background-color: #46a049;}

.work {background-color: #ff9800;} /* Orange */
.work:hover {background: #e68a00;}