@charset "UTF-8";
body {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ecf0f1;
  height: 100vh;
}

/* Hide the input */
input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  z-index: -1;
}

.check-trail {
  display: flex;
  align-items: center;
  width: 9em;
  height: 5em;
  background: #2c3e50;
  border-radius: 2.5em;
  transition: all 0.5s ease;
  cursor: pointer;
}

.check-handler {
  display: flex;
  margin-left: 0.5em;
  justify-content: center;
  align-items: center;
  width: 4em;
  height: 4em;
  background: #34495e;
  border-radius: 50%;
  transition: all 0.5s ease;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}
.check-handler:before {
  content: "\00D7";
  color: white;
  font-size: 2em;
  font-weight: bold;
}

input[type="checkbox"]:checked + .check-trail {
  background: #16a085;
}
input[type="checkbox"]:checked + .check-trail .check-handler {
  margin-left: 50%;
  background: #1abc9c;
}
input[type="checkbox"]:checked + .check-trail .check-handler::before {
  content: "✔";
}