header {
    position: fixed;
    width: 99%;
}

nav {
    position: -webkit-sticky;
    position: fixed;
    margin-top: 57.5px;
    width: 99%;
}

input[type=number] {
    width: 140px;
    border-radius: 5px;
    padding: 3px 12px;
    border: 3px solid #2f3966;
    -moz-outline-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 7px;

}

button,
input[type=button],
input[type=submit] {
    background-color: #0084ff;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 7px;
    font-family: Georgia,
        'Times New Roman',
        Times,
        serif;
    cursor: pointer;
    padding: 3px 12px;
    border: 3px solid #1833ab;


}

input[type=button]:hover,
input[type=submit]:hover {
    background-color: #9da0df80;
}


#inputdata {

    overflow: auto;
    margin-left: auto;
    margin-right: auto;
    padding: 30px;
    display: grid;
    height: 350px;
    width: 450px;
    background-color: rgb(33, 39, 33);
    border-radius: 25px;
    align-content: center;
    justify-content: center;
    margin-top: 150px;

}

.displayflex {
    display: flex;
}



.cen {
    margin-left: auto;
    margin-right: auto;
    text-align: center;

}

footer {
    background-color: #252525;
    padding-top: 15px;
    padding-bottom: 25px;
    position: fixed;
    bottom: 0;
    width: 99%;

}

#resss {
    margin: auto;
    margin-bottom: 0;
    text-align: center;

}

#reset {
    background-color: tomato;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 7px;
    cursor: cell;
    width: auto;
    padding: 6px 15px;
    border: 3px solid #f00000;
}

#reset:hover {
    background-color: #dfd39d80;
}



@media screen and (max-width: 630px) {

    #inputdata {

        overflow: auto;
        display: grid;
        height: 300px;
        width: 400px;
        background-color: rgb(33, 39, 33);
        border-radius: 25px;
        align-content: center;
        justify-content: center;


    }

}