#contenedor{
    display: flex;
    margin-right: 25%;
}

#appCalculator{
    height: 560px;
    width: 300px;
    background-color: #4d4d4d;
    text-align: center;
    margin: 0px auto;
    margin-right: 120px;
    
}

#Titulo{
    height: 500px;
    width: 360px;
    margin-left: -85px;
    font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    font-size: medium;    
    text-align: center;
    background-color: #1759e8;
}

#Historial{
    height: 480px;
    width: 360px;
    text-align:justify;
    margin: 0px auto;
    background-color:  #c1c4c9;
    font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    font-size: 28px;
}

#appCalculator form{
    height: 100%;
    width: 100%;
    background-color:  #464d4b;
}

#appCalculator input[type=text]{
    height: 30px;
    width: 270px;
    cursor: default;
    font-family: 'Roboto',sans-serif;
    color: #c1c4c9;
    padding: 15px;
    text-align: right;
    font-size: 50px;
    border: 0;
    outline:none;
    background-color: #2d2e2d;
    margin: 0%;
}

#appCalculator input[type=button]{
    width: 22%;
    cursor: pointer;
    font-family: 'Roboto',sans-serif;
    font-weight: bold;
    font-size: 26px;
    color: #1e1e1f;
    padding: 18px;
    margin: 3px;
    border:0;
    border-radius: 35%;
   /*background-color: #a5a8ad*/
}

#appCalculator .Azul{
    background-color: #1759e8;
}

#appCalculator .Gris{
    background-color: #c1c4c9;
    
}

#appCalculator .Verde{
    background-color: #b7f046;
}

#appCalculator .Azul:hover{
    background-color: #468ff0;
}

#appCalculator .Gris:hover{
    background-color: #777d85;
}

#appCalculator .Verde:hover{
    background-color: #89c43b;
}