body{
margin: 0;
padding: 0;
line-height: 0.5;
background: url('https://source.unsplash.com/1600x900/?nature,water');
}

.calci{
    width: 500px;
    padding-top: 100px;
    padding-bottom: 100px;
    position: absolute;
    top: 50%;
    left: 70%;
    transform: translate(-50%,-50%);
    transition: 0.25px;
    text-align: center;
}
#display{
    border: none;
    background-color: white;
    border-radius: 30px;
    width: 245px;
    font-size: 20px;
    font-family: sans-serif;
    font-weight: 300px;
    height: 60px;
    margin: auto;
    border: 2px solid white;
    color: black;
}

.btnDesign{
    width: 55px;
    height: 55px;
    background-color: white;
    padding-top: -1;
    border: none;
    border-radius: 30px;
    font-size: 20px;
    font-family: sans-serif;
    font-weight:300px;
    margin:1.5;
}

.operatorDesign{
    width: 55px;
    height: 55px;
    background-color: white;
    padding-top: -1;
    border: none;
    border-radius: 30px;
    font-size: 20px;
    font-family: sans-serif;
    font-weight:300px;
    margin:1.5;
    transition: 0.25px;
    cursor: pointer;
}

.operatorDesign:hover{
    background-color: #120ef0;
}


#zero{
    width: 116px;
    height: 55px;
    padding-top: -1;
    border: none;
    border-radius: 30px;
    font-size: 20px;
    font-family: sans-serif;
    font-weight:300px;
    margin:1.5;
    background-color: white;
}

h1{
    
    margin-top: 300px;
    margin-left: 100px;
    text-transform: uppercase;
    font-family: 'Lobster', cursive;
    font-weight: 700px;
    font-size: 50px;
    text-decoration: underline;
    color: indigo;
}