body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
#menu {
    margin-top: 135px;
    margin-left: 9.5px;
    position: absolute;
    background: #efefef;
    padding: 10px;
    font-family: 'Open Sans', sans-serif;
    font-size: 14px;
    border-radius: 2rem;
}

/* The container */
.container {
    display: inline-block;
    position: relative;
    padding-left: 20px;
    padding-right: 10px;
    margin-bottom: auto;
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
  
  /* Hide the browser's default radio button */
  .container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
  }
  
  /* Create a custom radio button */
  .checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 15px;
    width: 15px;
    background-color: #eee;
    border-radius: 50%;
  }
  
  /* On mouse-over, add a grey background color */
  .container:hover input ~ .checkmark {
    background-color: #ccc;
  }
  
  /* When the radio button is checked, add a blue background */
  .container input:checked ~ .checkmark {
    background-color: #2196F3;
  }
  
/* Create the indicator (the dot/circle - hidden when not checked) */
.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}