.grid-container {
  display: grid;
  grid-template-columns: auto auto auto;
  background-color: #FFFFFF;
  padding: 1px;
  height : 100%;
}
.grid-container_2 {
  display: grid;
  grid-template-columns: 100%;
  background-color: #FFFFFF;
  padding: 0px;
  height : 20%;
  width : 100%;
}
.grid-item {
  background-color: rgba(255, 255, 255, 0.8);
 //  border: 1px solid rgba(0, 0, 0, 0.8);
  //padding: 1px;
  font-size: 30px;
  text-align: center;
}
.button {
  font-size: 50;
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 16px 32px;
  width : 100%;
  height : 100%;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
}

.button {
  //background-color: white; 
  color: #333333; 
 // border: 2px solid #4CAF50;
}

.button:hover {
  background-color: white;
  color: #333333;
}


.button:disabled,
.button[disabled] {
	background-color: gray;
	
}