@import url(//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css);

label { font-size: 2em; }
input[type=checkbox] { display:none; }
input[type=checkbox] + label:before {
  font-family: FontAwesome;
  display: inline-block;
}
input[type=checkbox] + label:before { content: "\f096"; }
input[type=checkbox] + label:before { letter-spacing: 10px; }
input[type=checkbox]:checked + label:before { content: "\f046"; }
input[type=checkbox]:checked + label:before { letter-spacing: 5px; }

.guestList {
  position: absolute;
  z-index: 999;
  background-color: rgba(255, 255, 255, 0.93);
  left: 10%;
  border: 2px solid whitesmoke;
  display: inline-block;
  padding-left: 4em;
  padding-right: 4em;
  padding-bottom: 3em;
  padding-top: 1.7em;
  border-radius: 3px;
  margin: 2em;
}

.guestList h1 {
  font-size: 2.5em;
}

.guestName {
  margin-bottom: .5em;
}