html body main {
  display: flex;
  justify-content: center;
  align-items: center;
}

html body main .calculator {
  width: 586px;
  height: 798px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

@media only screen and (max-width: 800px) {
  html body main .calculator {
    width: 300px;
    height: 500px;
  }
}

html body main .calculator input[type="text"] {
  background-color: #2a2e3b;
  border-top-left-radius: 61px;
  border-top-right-radius: 61px;
  border: none;
  margin-bottom: 31px;
}

html body main .calculator .numbers {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  flex-direction: row;
  margin-left: 10px;
  margin-right: 10px;
  margin-bottom: 20px;
}

html body main .calculator .numbers .element {
  width: 90px;
  height: 90px;
  margin-left: 15px;
  margin-right: 15px;
  margin-top: 10px;
  margin-bottom: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media only screen and (max-width: 800px) {
  html body main .calculator .numbers .element {
    width: 40px;
    height: 40px;
  }
}