* {
    box-sizing: border-box;
}

main {
    display: block;
    margin: -80px auto 0px auto;
    padding: 80px 50px 20px 50px;
    background: rgba(255, 255, 255, 0.75);
}

body {
    background-image: url(../img/Bitcoin4.jpg);
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    width: 90%;
    min-width: auto;
    max-width: 1000px;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
    margin: auto;
}

nav {
    z-index: auto;
}

nav>ul>li {
    text-align: center;
    display: inline-block;
    width: auto;
    height: auto;
    background-color: #504D4C;
    margin-top: 2px;
    position: relative;
    border: 2px solid;
    border-color: #F7931A;
    position: relative;
    font-family: ecrit4;
}

nav>ul>li>a {
    text-align: center;
    display: inline-block;
    width: auto;
    height: auto;
    background-color: #676666;
    margin: 0;
    padding: 10px;
    color: black;
}

nav>ul>li>a:hover {
    background-color: #F7931A;
}

nav ul {
    text-align: center;
}

nav>ul>li>ul {
    top: 30px;
    left: 5px;
    white-space: nowrap;
    text-align: start;
    position: absolute;
    display: none;
}

h1 {
    background-color: #F7931A;
    text-align: center;
    margin: 0px;
    font-family: ecrit2;
}

body.deux {
    border-top: 0px solid;
    margin: auto;
}

div {
    display: block;
    color: black;
    background-color: #E9CA82;
    border: 3px solid #F7931A;
    border-radius: 80px;
    padding: 3%;
    margin: 2%;
}

h2 {
    text-align: center;
    margin-top: 60px;
    background: #F7931A;
    animation: h2 2s alternate infinite;
    font-family: ecrit1;
}

p {
    font-family: ecrit3;
}

@font-face {
    font-family: "ecrit1";
    src: url("../fonts/ShareTechMono-Regular.ttf") format("truetype");
}

@font-face {
    font-family: "ecrit2";
    src: url("../fonts/Staatliches-Regular.ttf") format("truetype");
}

@font-face {
    font-family: "ecrit3";
    src: url("../fonts/LibreBaskerville-Regular.ttf") format("truetype");
}

@font-face {
    font-family: "ecrit4";
    src: url("../fonts/BreeSerif-Regular.ttf") format("truetype");
}

@keyframes h2 {
    0% {
        background-color: #F7931A;
    }
    100% {
        background-color: #ED8200;
    }
}

.footer {
    color: white;
    display: block;
    background-color: #444444;
    border: 3px solid #F7931A;
    border-radius: 40px;
    padding: 3%;
    margin: 2%;
}

.footer>ul>li>a {
    color: white;
}

#li #aa {
    text-decoration: none;
    color: red;
}

#nav {
    width: 300px;
}

#spa {
    background: green;
    color: white;
    font-size: 1.2em;
    font-variant: small-caps;
    cursor: pointer;
    display: block;
}

#spa::after {
    float: right;
    right: 10%;
    content: "+";
}

.slide {
    clear: both;
    width: 100%;
    height: 0px;
    overflow: hidden;
    transition: height 1s ease;
}

#touch {
    position: absolute;
    opacity: 0;
    height: 0px;
    background-color: red;
}

#touch:checked + .slide {
    height: auto;
}

section>footer>ul>li>a {
    display: inline-block;
    color: white;
}

head {
    display: none;
}

img {
    border: 3px solid #F7931A;
    display: block;
    margin: auto;
    width: 70%;
    margin-bottom: 40px;
}

iframe {
    height: 520px;
    box-sizing: border-box;
    width: 100%;
    border: 3px solid #F7931A;
    border-radius: 80px;
}

#Bitcoin11 {
    width: 50%;
}

#Bitcoin10 {
    width: 50%;
}

#bitcoin1 {
    width: 50%;
}

#bitcoin2 {
    width: 50%;
}

#bitcoin3 {
    width: 50%;
}