*{
    font-family: Arial, Helvetica, sans-serif;
}

.calculadora{
    margin:0 auto;
    padding:20px;
    background-color:#004675;
    width:97%;
    height:90vh;
    border-radius: 25px;
  }
  .calculadora td button{
    display:block;
    width:85%;
    height: 15vh;
    font-size: 40px;
    border-radius: 20px;
    box-shadow: 2px 2px 3px 4px rgba(0, 0, 0, 0.3);
    margin: auto;
  }
  #creditos{
    display:block;
    padding-top:20px;
    color:#fff;
    text-align: center;
    width:300px;
  }
  #resultado{
    display:block;
    text-align: center;
    font-size: 60px;
    margin-bottom: 50px;
    width:97%;
    height: 15vh;
    line-height: 100px;
    background-color:rgb(240, 164, 0);
    border-radius: 25px;
    color: white;
    margin: auto;
    box-shadow: 2px 2px 3px 4px rgba(0, 0, 0, 0.3);
    margin-top: 30px;
  }


.calculadora td button:hover{
    transition: 0.5s;
    background-color: #007fd3;
    color: white;
  }

i{
    position: absolute;
    left: 90px;
    top: 23px;  
    color: rgb(247, 123, 0);
    font-size: 30PX;
    cursor: pointer;
    
}

i:hover{
    transition: 1s;
    transform: rotate(150deg);
    color:  rgb(255, 157, 59);
}