#all {
    width: 300px;
    margin: 10px auto 0 ;
    font-size: 0;
    justify-content: space-around;



}
#ekran {
    text-align: center;
    width: 243px;
    height: 60px;
    border-top: 1px #999 solid;
    border-left: 1px #999 solid;
    border-right: 1px #999 solid;

}

#jeden{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
    text-align: center;


}
#dwa{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#trzy{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#cztery{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#piec{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#szesc{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#siedem{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#osiem{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#dziewiec{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    font-size: 20px;
}
#zero{
    height: 60px;
    width: 121px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    border-bottom: 1px #999 solid;
    font-size: 20px;
}
#plus{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    border-right: 1px #999 solid;
    font-size: 20px;

}
#krop{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    border-bottom: 1px #999 solid;
    font-size: 20px;
}
#rowna{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    border-right: 1px #999 solid;
    font-size: 20px;
}
#dele{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    border-right: 1px #999 solid;
    border-bottom: 1px #999 solid;
    font-size: 20px;
}
#minus{
    height: 60px;
    width: 60px;
    border-left: 1px #999 solid;
    border-top: 1px #999 solid;
    border-right: 1px #999 solid;
    font-size: 20px;
}

#jeden, #dwa, #trzy, #plus{display: inline-block;}
#cztery, #piec, #szesc, #minus{display: inline-block;}
#siedem, #osiem, #dziewiec, #rowna{display: inline-block;}
#zero, #krop, #dele{display: inline-block;}