html body {
  background-color: #242833;
  color: white;
  font-family: sans-serif;
  margin: 0;
}

html body header h1 {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 0;
}

html body header h1 span {
  color: #70a47e;
}

html body header P {
  text-align: center;
  color: rgba(255, 255, 255, 0.22);
  font-size: 1.5em;
  margin-top: 0;
}

html body main .calculator {
  background-color: #383e50;
  border-radius: 61px;
}

html body main .calculator input[type="text"] {
  font-size: 3em;
  text-align: right;
  user-select: none;
  width: 534px;
  height: 35%;
  padding-right: 50px;
}

@media only screen and (max-width: 800px) {
  html body main .calculator input[type="text"] {
    width: 250px;
    height: 35%;
    font-size: 2.4em;
  }
}

html body main .calculator .numbers .element:hover {
  background-color: white;
  color: black;
  cursor: pointer;
}

html body main .calculator .numbers .element {
  background-color: #2a2e3b;
  font-size: 2.5em;
  user-select: none;
  transition: all 0.3s ease-in-out;
}

@media only screen and (max-width: 800px) {
  html body main .calculator .numbers .element {
    font-size: 1.5em;
  }
}

html body main .calculator .numbers .function {
  background-color: #57607b;
}

html body footer {
  text-align: center;
}