*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    
}
.container{
    width: 100%;
    height: 100vh;
    background: linear-gradient(to bottom, rgb(209, 83, 83), rgb(80, 80, 215), rgb(231, 231, 53),rgb(56, 119, 56));
    display: flex;
    align-items: center;
    justify-content: center;
}
.cal{
    background-color: #3a4452;
    padding: 20px;
    border-radius: 10px;

}
.container form input{
    /* border: ; */
    outline: 0;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    box-shadow: -20px -199px 115px rgba(44, 89, 37, 0.1),7px 5px  15px rgba(13, 163, 93, 0.905);
    background: transparent;
    font-size: 20px;
    color: #fff;
    margin: 10px;
    cursor: pointer;
    
}
form .display{
    display: flex;
    justify-content: flex-end;
    margin: 20px 0;
    
  

}
form .display input{
    text-align: right;
    flex: 1;
    box-shadow: none;
    font-size: 50px;
}
 form .es .equal{
    width: 148px;
    color:yellow;
    font-size: 800;
    
}
.container form .o{
    color: rgb(232, 236, 0);
    font-weight: 900;
}