@import url('https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=swap');
* {
  box-sizing: border-box;
  outline: 0;
}
body {
  margin: 0;
  padding: 0;
  font-family: 'Open sans', sans-serif;
  font-size: 1.3em;
  line-height: 1.5em;
transition: all 1s;
}
.container2 {
  max-width: 380px;
  background-color: #252d44;
  padding: 20px;
  border-radius: 10px;
  margin-top: 10px;
 display: flex;
 justify-content: center;
}
.container-table{
  display: flex;
  justify-content: center;
}
.calculadora {
  width: 370px;
  margin-left: -15px;
border-radius: 20px;
}
.calculadora tr td button{
  border-radius: 11px;
  color: #3f4c5c;
  font-size: 20px;
}
.display {
  font-size: 2em;
  width: 377px;
  text-align: right;
  margin-top:10px;
  height: 100px;
  border-radius:10px;
  background-color: #181f32;
  color: white;
  border: none;
}

.btn22 {
  width: 100%;
  height: 50px;
  font-size: 35px;
  border: none;
  background-color: #eae3db;
  cursor: pointer;
  border-radius: 20px;
  color: #4c505c;
}
.container-display{
  width: 100%;
  display: flex;
  justify-content: center;
 
}
.btn:hover {
  background-color: #9e9e9e;
}
.pai {
  width: 100px;
  background-color: #252c46;
  height: 30px;
  border-radius: 15px;
  margin-left: 70px;
  margin-top: -25px;
}

.filho {
  background-color: red;
  border-radius: 20px;
  width: 15px;
  height: 15px;
  margin-top: 7px;
  margin-left: 10px;
  transition: all 1s;
  float: left;
}
span {
  letter-spacing: 9px;
  font-size: 20px;
  margin-top: -70px;
  margin-left:40%;
  display: block;
}

span button {
  border: 0px;
  cursor: pointer;
  color: white;
  border: none;
  outline: none;
  background-color: transparent;
}
.bg{
  margin-top: 200px;
  width: 100%;
  height: auto;
  display: flex;
  justify-content: center;
}
.text-container{
  width: 380px;
  height: 50px;
  margin-top: -20px;
display: flex;
}
.calc{
  color: white;
  font-size: 25px;
  flex: 1;
}
.tema{
  color: white;
  margin-top:10px;
  flex: 1;
}
@media screen and (max-width:1400px) and (max-height:600px) {
 .bg{
   margin-top: 50px;
 } 
}
@media screen and (max-width:500px) {
  .bg{
    margin-top: 50px;
  }
}
@media screen and (max-width:400px) {
  .calculadora{
    height: 400px;
    width: 280px;
  }
  .display{
    width: 305px;
  }
  .bg{
    margin-top: 50px;
  }
  .btn22{
    height: 65px;
    width: 120%;
  }
  #Reset{
    width: 120%;
 
  }
  #equal{
    width: 100%;
    margin-left: 15px;
  }
  .bg{
  width: 80%;
  margin-left: 10%;
  }
}