#calculadora {
  width: 330px;
  margin: 0 0 0 0;
  padding: 2rem;
  border-radius: 0.5rem;
  background: orange;
  border: 1px steelblue solid;
  -webkit-box-shadow: 0px 0px 5px 5px #e8dfe8;
  -moz-box-shadow: 0px 0px 5px 5px #e8dfe8;
  box-shadow: 0px 0px 5px 5px #e8dfe8;
}
#result {
  background-color: #F0F0F0;
  text-align: right;
  height: 45px;
  padding: 0.1rem;
  width: 98%;
  border: 1px #cacaca solid;
  font-size: 1.8rem;
  border-radius: 0.5rem;
}
#datos {
  height: 3rem;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-content: stretch;
  align-items: flex-start;
}
#total {
  text-align: left;
  width: 30%;
  font-size: 15px;
  padding-left: 0.6rem;
}
#escribe {
  text-align: right;
  min-height: 20px;
  min-width: 65%;
  font-size: 15px;
}
#teclas {
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-direction: row;
  -ms-flex-direction: row;
  flex-direction: row;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-justify-content: flex-start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  -webkit-align-content: stretch;
  -ms-flex-line-pack: stretch;
  align-content: stretch;
  -webkit-align-items: flex-start;
  -ms-flex-align: start;
  align-items: flex-start;
}
#numeros {
  width: 70%;
  padding: 0.5rem 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-around;
  align-content: stretch;
  align-items: flex-start;
}
#numeros > button {
  min-width: 30%;
  height: 50px;
  font-size: 2rem;
  background: steelblue;
  color: white;
  border-radius: 0.5rem;
}
#operadores {
  width: 27%;
  margin-left: 2%;
  padding: 0.5rem 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-around;
  align-content: stretch;
  align-items: flex-start;
}
#operadores > button {
  min-width: 45%;
  height: 50px;
  border-radius: 0.5rem;
  background: rose;
}
#operadores > button > span {
  font-size: 1rem;
  color: steelblue;
}
#operadores button:nth-child(5), #operadores button:nth-child(6), #operadores button:nth-child(7) {
  width: 100%;
}
#numeros button:nth-child(1) {
  width: 100%;
}
#numeros button:last-child {
  width: 100%;
}