
@font-face {
    font-family: 'Source Sans Pro';
    src: url('../font/SourceSansPro-ExtraLight.woff') format('woff');
    font-weight: 400;
    font-style: normal;
}

body {
    background-color: #000;
    margin: 0;
    font-family: 'Source Sans Pro', sans-serif;
}

div {
    padding: 0;
    margin: 0;
}

#main {
    width: 100%;
}

#keypad {
    position: absolute;
    bottom: 0;
    width: 98%;
    margin: 15px 4px 4px 4px;
}

#keypad > div {
    height: 75px;
    font-size: 28px;
    width: 100%;
    overflow: hidden;
    border-bottom: 1px solid black;
}

#keypad > div.display > input {
    font-family: 'Source Sans Pro', sans-serif;
    font-size: 50pt;
    height: 75px;
    width: 98%;
    text-align: right;
    background-color: #000;
    color: #fff;
    border: none;
    padding: 0;
}

#keypad > div > div {
    padding-top: 15px;
    border-right: 1px solid black;
    width: 24.5%;
    text-align: center;
    background-color: #CFD0D2;
    color: #272727;
    display: inline-block;
    height: 100%;
    float:left;
}

#keypad > div.horizontal.display {
    border: none;
    margin-bottom: 20px;
}

#keypad > div > div.double-wide {
    width: 49.1%;
}

.num-key {
    background-color: #CFD0D2;
}

#keypad > div > div.control-key {
    background-color: #C1C2C4;
    color: #1D1D1D;
}

#keypad > div > div.operation-key {
    background-color: #F57A12;
    color: #fff;
}


