.dropbtn {
  background-color: #4CAF50;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

.dropbtn:hover, .dropbtn:focus {
  background-color: #3e8e41;
}

#myInput {
  border-box: box-sizing;
  background-image: url(data:image/png;base64,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);
  background-position: 14px 12px;
  background-repeat: no-repeat;
  font-size: 16px;
  padding: 14px 20px 12px 45px;
  border: none;
  border-bottom: 1px solid #ddd;
  position:relative;
  z-index: 10;
}

#myInput:focus {outline: 3px solid #ddd;}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f6f6f6;
  min-width: 230px;
  overflow: auto;
  border: 1px solid #ddd;
  z-index: 10;
}

.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

.dropdown a:hover {background-color: #ddd;}

.show {display: block;}