html, body, div, span, applet, object, iframes,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, sub, sup, tt, var,
u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
    display: block;
}

blockquote, q {
    quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

body {
    font-family: 'OpenSans', sans-serif;
    text-align: center;
}

#container {
    font-size: 32px;
    margin: 5%;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, .4);
}

#calculator, #number, .buttons {
    border-radius: 6px;
}

#calculator {
    margin: 0 auto;
    background-color: #454545;
    border: 1px solid #3D3D3D;
    width: 100%;
    box-shadow: 0 7px 10px rgba(0, 0, 0, .8);
}

#header {
    border-top: 1px solid #777;
    border-radius: 6px 6px 0 0;
    padding: 1%;
    text-align: right;
    background-color: #121212;
    border: none;
    border-bottom: 1px solid #777;
    color: #C8C8C8;
    font-size: 3em;
    width: 92%;
    box-shadow: inset 0 0 10px 4px rgba(0, 0, 0, .6);
    margin: 3%;
    overflow: hidden;
}

input#number:focus {
    outline: none;
}

#body {
    padding: 0 10px;
}

.buttons {
    cursor: default;
    text-align: center;
    padding: 1%;
    font-size: 3em;
    text-shadow: 0 -1px 1px #000;
    color: #FFF;
    font-weight: bold;
    display: inline-block;
    border-top: 1px solid #777;
    width: 20%;
    background: linear-gradient(#5F5F5F 0%, #404040 100%);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .8);
    margin: 1%;
}

.buttons:hover {
    background: linear-gradient(#79D144 0%, #50A61F 100%);
    border-top: 1px solid #9ADD73;
    text-shadow: 0 -1px 1px #008000;
}

.buttons:active {
    box-shadow: none;
}

.cancel {
    background: linear-gradient(#ce0909  0%, #5c0909 100%);
}

.memoire {
    background: linear-gradient(#1408be  0%, #0d0649 100%);
}

.fermer {
    background: linear-gradient(#1408be  0%, #0d0649 100%);
    width: 70%;
}
.equal {
    background: linear-gradient(#39ac0b 0%, #1b6b03 100%);
}

#memoire {
    color: white;
}