*{
    padding: 0;
    margin: 0;
}
@media screen and (min-width: 992px){ /*For PC (In Progress...)*/
    html, body #fullheight{
        min-height: 100% !important;
        height: 100%;
        font-family: Arial, Helvetica, sans-serif;
        background-color: black;
    }
    .container{
        height: 100%;
        background-color: black;
    }
    .result{
        display: flex;
        justify-content: flex-end;
        align-items: flex-end;
        color: white;
        height: 39%;
    }
    .buttons{
        width: 100%;
        height: 110%;
        background-color: black;
        display: grid;
        grid-template-columns: 20% 20% 20% 20% 20%;
        grid-template-rows: 30% 30% 30% 30%;
    }
    .item{
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 30px;
        color: white;
        height: 10;
        width: 98%;
        border-radius: 140px;
        padding: 30px;
        cursor: pointer;
        align-self: center;
        justify-self: center;
    }

    .persent{
        background-color: #a5a5a5;
        border: none;
        color: black;
    }

    .item1{
        background-color: #a5a5a5;
        border: none;
        color: black;
    }

    .item2{
        background-color: #ff9f0a;
        border: none;
    }

    .numbers, .comma{
        background-color: #343434;
        border: none;
        grid-template: 1fr 1fr 1fr 1fr;
    }
    
    .itemZero{
        justify-content: start;
        align-items: center;
        background-color: #343434;
        border: none;
        width: 99%;
        border-radius: 120px;
        grid-column: span 2;
        padding-left: 20%;
    }

    #input {
        display: flex;
        font-size: 80px;
        background-color: black;
        border: none;
        color: white;
        text-align: right;
        margin-right: 2%;
        padding-top: 10%;
        width: 100%;
    }

    /*Position of Buttons*/
    .clear{
        grid-column: 4;
        grid-row: 1; 
    }
    .sign{
        grid-column: 4;
        grid-row: 2;
    }
    .persent{
        grid-column: 4;
        grid-row: 3;
    }
    .equal{
        grid-column: 4;
        grid-row: 4;
    }
    .divide{
        grid-column: 5;
        grid-row: 1;
    }
    .multiply{
        grid-column: 5;
        grid-row: 2;
    }
    .minus{
        grid-column: 5;
        grid-row: 3;
    }
    .plus{
        grid-column: 5;
        grid-row: 4;
    }
    /*----------*/
    
}
@media screen and (max-width: 992px){ /*For Phones*/

    html, body #fullheight{
        min-height: 50% !important;
        height:50%;
        font-family: Arial, Helvetica, sans-serif;
        background-color: black;
    }
    .container{
        height: 100%;
        background-color: black;
    }
    .result{
        display: flex;
        justify-content: flex-end;
        align-items: flex-end;
        color: white;
        height: 39%;
    }
    .buttons{
        width: 100%;
        height: 100%;
        background-color: black;
        display: grid;
        grid-template-columns: 25% 25% 25% 25%;
        grid-template-rows: 25% 25% 25% 25%;
    }
    .item{
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 100px;
        color: white;
        height: 200px;
        width: 200px;
        border-radius: 100%;
        padding: 10px;
        cursor: pointer;
        align-self: center;
        justify-self: center;
    }

    .persent{
        background-color: #a5a5a5;
        border: none;
        color: black;
    }

    .item1{
        background-color: #a5a5a5;
        border: none;
        color: black; 
    }

    .item2{
        background-color: #ff9f0a;
        border: none;
    }

    .numbers, .comma{
        background-color: #343434;
        border: none;
    }
        
    .itemZero{
        justify-content: start;
        align-items: center;
        background-color: #343434;
        border: none;
        width: 90%;
        border-radius: 120px;
        grid-column: span 2;
        padding-left: 10%;
    }

    #input {
        display: flex;
        font-size: 210px;
        background-color: black;
        border: none;
        color: white;
        text-align: right;
        margin-right: 5%;
        padding-top: 39%;
        width: 100%;
    }
}