style.css

html, body {
    margin: 0;
  }
  
  html {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    height: 100%;
  }
  
  body {
    overflow: hidden;
    height: inherit;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: black;
  }
  
  h1 {
    letter-spacing: -1px;
    position: absolute;
    margin: 0;
    top: -4px;
    right: 5px;
    color: transparent;
    color: white;
  }

#output{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

p{
  background-color: rgb(0, 0, 0);
  color: rgb(224, 213, 213);
  font-size: 40px;
}
.hidden{
  display: none;
} 

button{
  padding: 10px 20px;
  background-color: rgb(85, 200, 85);
  border-radius: 5px;
  box-shadow: 2px 2px 4px rgb(147, 138, 138);
  font-size: 25px;
}