@font-face {
    font-family: "Digital";
    src: url("../font/DS-DIGI.TTF") format("truetype");
    src: url("../font/DS-DIGIB.TTF") format("truetype");
    src: url("../font/DS-DIGII.TTF") format("truetype");
    src: url("../font/DS-DIGIT.TTF") format("truetype");
}
body
{
    font-family:"Digital";
    background-image:url('../img/calculatrice.png');
    background-repeat:no-repeat;
    background-size:cover;
    background-attachment:fixed;
    text-align: center;
    margin:0px;
}
.pens
{
    background-image:url('../img/pens.png');
    background-position:center;
    background-size:100%;
    top:0px;
    margin-left:0px;
    position:fixed;
    width:564px;
    height:330px;
    z-index:-1;
}
.postit
{
    background-image:url('../img/postit.png');
    background-position:center;
    background-size:100%;
    top:0px;
    right:0px;
    position:fixed;
    width:450px;
    height:450px;
    z-index:-1;
    transform:rotate(30deg);
}
.elastic
{
    background-image:url('../img/elastic.png');
    background-position:center;
    background-size:100% 100%;
    bottom:-30px;
    left:-50px;
    position:fixed;
    width:40%;
    height:300px;
    z-index:1;
}
.calculator
{
    width:50%;
    margin:50px auto;
    border-radius:10px;
    border:3px grey solid;
    box-shadow:10px 10px 20px black;
    background-image:url('../img/carbone2.jpg');
    background-size:100% 100%;
    transform:rotate(15deg);
}
.calculator h1
{
    font-size:7vw; 
    line-height:90px;
    font-weight:bold;
    margin:auto;
    width:100%;
    overflow: hidden;
    border-bottom:1px solid grey;
    /*background-image:url('../img/spirales.png');*/
    background-repeat:repeat-x;
    background-size:auto 100% ;   
}
.whiteTube
{

    background: linear-gradient(0.5turn, rgba(255,255,255,0.2), #ebf8e1, rgba(255,255,255,0.2));
}
.valid
{
    color:green;
}
.error
{
    color:red;
}
.calculator input[type=text]
{
    font-family:"Digital";
    font-size:90px;
    width:33%;
    height:100px;
    text-align:center;
    display:inline-block;
    background:linear-gradient(to top right,grey, rgba(255,255,255,0.8)90%);
    margin:25px;
}

.calculator input[type=submit]
{
    font-family:"Digital";
    font-size:5vw;
    width:18%;
    height:100px;
    text-align:center;
    background-color:rgba(255,255,255,0.6);
    border:8px ridge grey;
    margin:20px auto;
}
.calculator p
{
    width:100%;
    font-size:7vw;
    line-height:100px;
    margin:auto;
    text-shadow:2px 2px 20px white;
    border-top:2px solid grey;
    overflow:hidden;
}
.yellow{
    color:yellow;
    text-shadow:2px 2px 3px black;
}
.black{
    color:black;
}