style.css

html {
  box-sizing: 'border-box'
}

* {
  text-align: center;
  margin: 0;
  padding: 0;
}


#app {
  padding: 40px 0 80px 0;
  margin: 0px;
  background-image: url('what-the-hex.png');
}

#headers > h1, h2 {
  margin: 0 0 20px 0;
}

#guesses {
  margin: 30px 0;
}

#input-parent {
  margin: 60px auto;
  position: relative;
  left: 30px;
}

#input-parent > input, button {
  border-radius: 50%;
}

#input-parent >input {
  border-top: solid 3px #595959; 
  border-left: solid 3px #595959; 
  border-bottom: solid 1px gray; 
  border-right: solid 1px gray; 
  background-color: white;
  color: gray;
  height: 150px;
  width: 150px;
  font-size: 40px;
}

#input-parent button {
  background-color: #33cc33;
  color: white;
  height: 60px;
  width: 60px;
  font-size: 15px;
  position: relative;
  top: 40px;
  right: 40px;
}

ul {
    list-style: none;
}

li {
  display: inline-block;
  border: solid 1px black;
  border-radius: 3px;
  padding: 10px 30px;
  font-size: 40px;
  margin: 0px 3px;
  background-color: white;
}

img {
    height: 50px;
}

#footer {
    width: 100%;
    /*height: 100px;*/
    padding: 20px 0;
    border-top: solid 2px black;
    background-color: white;
    bottom: 0;
    position: absolute;
}