.calculatrice
{
        width:300px;
        height:300px;
        background-color:#eeeeee;
        border:2px solid #CCCCCC;
        margin:auto;
        padding-left:5px;
        padding-bottom:5px;
		position: fixed;
		top: 10em;
		left: 1em;
}
.calculatrice td
{
        height:16.66%;
}
.calc_td_resultat
{
        text-align:center;
}
.calc_resultat
{
        width:90%;
        text-align:right;
}
.calc_td_calculs
{
        text-align:center;
}
.calc_calculs
{
        width:90%;
        text-align:left;
}
.calc_td_btn
{
        width:25%;
        height:100%;
}
.calc_btn
{
        width:90%;
        height:90%;
        font-size:20px;
}