.cmbtn {
  border: none;
  color: white;
  padding: 14px 28px;
  font-size: 16px;
  cursor: pointer;
}

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

.cmblue {background-color: #2196F3;} /* Blue */
.cmblue:hover {background: #0b7dda;}

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

.cmred {background-color: #f44336;} /* Red */ 
.cmred:hover {background: #da190b;}

.cmdefault {background-color: #e7e7e7; color: black;} /* Gray */ 
.cmdefault:hover {background: #ddd;}