* {
 font-size: 100%;
 font-family: Arial;
}

.title{
	text-align: center;
	font-size: 25px;
	font-weight: bold;
}

.btn_range{
	background-color: gray;
}

.btn-group .button {
  background-color: #4CAF50; /* Green */
  border: 1px solid green;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  cursor: pointer;
  float: left;
}

.btn-group .button:not(:last-child) {
  border-right: none; /* Prevent double borders */
}

.btn-group .button:hover {
  background-color: #3e8e41;
}


.footer {
   position: fixed;
   left: 0;
   bottom: 0;
   width: 100%;
   background-color: black;
   color: white;
   text-align: left;
}