*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;

}

.container{
    width: 100%;
    height: 100vh;
    background: #e3f9ff;
    justify-content: center;
    align-items: center;
    display: flex;
}

.caculator{
    background:#3a4452;
    padding: 20px;
    border-radius: 10px;
}
.caculator form input{
    border: 0;
    outline: 0;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    box-shadow: -8px -8px 15px rgba(255,255,255, 0.1),5px 5px 15px rgba(0,0,0,0.2);
    background: transparent;
    font-size: 20px;
    color: #fff;
    cursor: pointer;
    margin: 10px;
}
form .display{
    display: flex;
    justify-content: end;
    margin: 20px 0;

}
form .display input{
    text-align: right;
    flex:1;
    box-shadow: none ;
}
form input.equal{
    width: 140px;
}