h1, h3 {
  text-align: center; /* Center align headers */
}
  
body {
  font-family: 'Roboto', sans-serif;
  margin: 0; 
  padding: 10px;
}
  
/* br {   
  content: "";
  margin: 2em;
  display: block;
  margin-bottom: -25px; 
} */
  
.filterDiv {
  float: left;
  background-color: #2196F3;
  color: #ffffff;
  width: calc(100% / 3 - 10px);
  max-width: 170px;
  /* width: 120px; */
  height: 205px;
  /* line-height: 40px; */
  text-align: center;
  margin: 5px;
  /* margin: 2px; */
  display: none;
  padding: 10px;
  /* padding-top: 5px;
  padding-bottom: 5px;
  padding-left: 5px;
  padding-right: 5px; */
  position: relative;
}
  
.show {
  display: block;
}
  
.container {
  margin-top: 20px;
  overflow: hidden;
}
  
.btn {
  border: none;
  outline: none;
  padding: 12px 16px;
  margin: 2px;
  background-color: #f1f1f1; 
  cursor: pointer;
  border-radius: 4px;
}
  
.btn:hover {
  background-color: #ddd;
}
  
.btn.active {
  background-color: #666;
  color: white;
}
  
.data {
  font-size: 11px;
  font-weight: bold;
}
  
.luogo {
  font-size: 11px;
  font-style: italic;
}
  
.dot {
  height: 12px;
  width: 12px;
  background-color: #4A4E55;
  border-radius: 50%;
  display: inline-block;
}
  
#info {
  position: absolute;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  text-align: center;
  bottom: 5px;
}