*{
    padding: 0;
    margin: 0;
}
body{
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: bisque;
}
h2{
    margin-bottom: 10px;
    margin-left: 10px;
    
}
.back{
    width:100px;
    height: 40px;
    border-style:none ;
    border-radius: 20px;
    position: relative;
    top:250px;
    right:200px;
    background-color: yellowgreen;
    font-weight: 700;
}
.back:hover{
    background-color: grey;
    color: white;
}
span{
    color:#ccc;
    font-size: 30px;
    font-weight: 700;
}
.calculator{
    background-color: #f04f;
    border: 1px solid black;
    border-radius: 8px;
    padding: 10px;
    width: 300px;
    box-shadow: 5px 5px 5px black;
}
.calculator button{
    background-color: #f5f5f5;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    margin:5px ;
    height: 50px;
    width:60px;
    border-radius: 50%;
    box-shadow: 5px 5px 5px black;

}
.calculator button:hover{
    background-color: #d8d8d8;
    cursor:pointer;
}
#result{
    border-radius: 5px;
    font-size: 25px;
    margin-bottom: 10px;
    padding: 10px;
    width:260px;
    box-shadow: 5px 5px 5px black;
}
#clear{
    width:285px;
}
@media only screen and (max-width:600px){
.calculator{
   /* margin-left: 120px;*/
}


}