* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
body{
    background-image: url(./img/Default_sepia_ink_wash_Landscape_of_ancient_villages_in_Ninh_B_1_ff37f4fd-5415-4bdc-a8c4-4578e3e48eeb_1.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 100vh;

}

header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(6px);
}

h1 {
    font-size: 4rem;
    color: black;
    text-align: center;
    padding: 10px;
}

h2 {
    font-size: 2rem;
    color: brown;
    text-align: center;
    padding: 10px;
}

.contenedor{
    width: 100%;
    height:100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.calculadora {
    background-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(6px);
    border-radius: 8px;
    width: 400px;
    height: 600px;
}

.display{
    width: 100%;
    height: 100px;
    border-radius: 8px;
    border: black solid 3px;
    color: black;
    font-weight: 900;
    font-size: 50px;
    text-align: right;
}
.row{
    width: 100%;
    height: 100px;
    display:inline-flex;
    justify-content: space-between;
    align-items: center;
}

.btn{
    width: 6rem;
    border-radius: 8px;
    padding: 1.5rem;
    font-weight: 900;
    font-size: 2rem;
}

.btn_{
    width: 100%;
    border-radius: 8px;
    padding: 1.5rem;
    font-weight: 900;
    font-size: 2rem;
    background-color: chocolate;
}