/* *{

    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    border-collapse: collapse;

}

.parent{


    width: 100%;
    height: 100vh;
    background-color: aliceblue;
    display: flex;
   align-items: center;
   justify-content: center;


}

.child{


    width: 400px;
    height: 600px;
    background-color: rgb(255, 255, 255);
    border: 10px solid lightblue;
    border-radius: 20px;


}

#textbox{


    width: 100%;
    height: 145px;
    border: 2px solid black;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px; 
    padding: 10px;   

}


.boxes{


   width: 100%;
   height: 435px;
   display: flex;
   flex-direction: row;
   background-color: rgb(9, 9, 9);
   flex-wrap: wrap;
   border-bottom-left-radius: 10px;
   border-bottom-right-radius: 10px;
   
   

}

.box{


margin-left: 3px;
width: calc(25% - 4px);
height: 15%;
text-align: center;
font-size: 30px;
font-weight: bold;
line-height: 60px;
background-color: gray;
border-radius: 10px;
padding: 2px;

}


.box:hover{

    background-color: rgb(82, 81, 81);
}


#eq-btn{

    background-color: rgb(43, 177, 255);
} */



*{

    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    font-family: 'Segoe UI';

}


body{

    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(45deg,white,blue)

}

#inputBox{
   
    width: 270px ;
    padding: 20px;
    font-size: 40px;
    margin: 15px;
    text-align: right;
    font-weight: 300;
    background-color: transparent;
    border-radius: 10px;
    color: #fff;
    box-shadow: -8px -8px 15px rgba(231, 231,231, 0.4);

}

.box{
     
    width: 300px;
    border: 2px solid black;
    border-radius: 20px;
    background-color: transparent;
    box-shadow: -8px -8px 15px rgba(231, 231,231, 0.4); 
}

.button{

    border-radius: 50%;
    padding: 10px;
    margin: 10px;
    width: 50px;
    background-color: transparent;
    box-shadow: -8px -8px 15px rgba(231, 231,231, 0.4); 
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    border: 1px ;
}

.button:hover{

background-color: rgb(90, 96, 216) ;

}

.operator{
    color: green;
}

#eq-btn{

    background-color: orange;

}