body {
  font-family: "Pacifico", cursive;
  font-size: 24px;
  background-color:black;
}

#matches {
  float: left;
  width: 40%;
  background-color: #222;
  height: 50vh;
  padding-bottom:40px;
}

#gallery {
  float: left;
  width: 60%;
  background-color: #222;
  height: 50vh;
  padding-bottom:40px;
}

#controls {
  width: 100%;
  float:left;

}

.flex-container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin-top:20px;

}

input {
  display: none;
}

input[type="radio"] {
  opacity: 0;
  width: 0px;
}

input[type="submit"] {
  opacity: 0;
  width: 0px;
}

h1 {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  margin-bottom: 20px;
  margin-top: 50px;
  color: yellow;
}

label {
  padding: 20px;
  margin: 5px;
  cursor: pointer;
  border:5px #444 solid;
}

label[for="play"] {
  display: block;
  background-color: red;
  color: #fff;
  font-size:2em;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  border-radius: 20px;
  margin-top:50px;
  padding: 20px 80px 20px 80px;
}

label[for="easy"],
label[for="normal"],
label[for="hard"],
label[for="impossible"] {
  display: block;
  background-color: white;
  color: #000;
  text-align: center;
  border-radius: 20px;
}

input:checked + label[for="easy"],
input:checked + label[for="normal"],
input:checked + label[for="hard"],
input:checked + label[for="impossible"] {
  background-color: greenyellow;
}

label[for="aliens"],
label[for="aliens 2"],
label[for="ice cream"],
label[for="monsters"],
label[for="pets"],
label[for="space"],
label[for="sea life"],
label[for="skulls"],
label[for="dinosaurs"],
label[for="science"] {
  display: block;
  background-color: white;
  color: #000;
  text-align: center;
  border-radius: 20px;
}

input:checked + label[for="aliens"],
input:checked + label[for="aliens 2"],
input:checked + label[for="ice cream"],
input:checked + label[for="monsters"],
input:checked + label[for="pets"],
input:checked + label[for="sea life"],
input:checked + label[for="science"],
input:checked + label[for="skulls"],
input:checked + label[for="dinosaurs"],
input:checked + label[for="space"] {
  background-color: greenyellow;

}

@media only screen and (max-width: 1136px) {
  #matches { width:100vw; height:auto;}
  #gallery { width:100vw; height:auto;}
  #control { height:auto;}
}