html, body {
    height: 100%;
    margin: 0;
    padding: 0;  
    color: #2D2926FF;
    font-size: large;
    font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !important;

}

header {
    background: #222;
    opacity: 80%;
    padding: 20px;
    width: 100%;
    color: white;
    position: fixed;
}

main {
    max-width: 70%;
    margin: 0 auto;
}

main h1 {
    margin: 0;
    padding: 100px 0 0 0;
}

img {
    width: 300px;
}

.span {
    font-weight: bold;
    text-align: left;
    display: inline-block;
}


nav a {
    color: white;
    padding: 0 10px 0 10px
}

nav {
    display: flex;
    justify-content: center;
}

.home-survey {
    text-align: center;
}

.home-crypto {
    text-align: center;
}

.home {
    text-align: center;
    padding: 10px 0 50px 0;
}

.copyright {
    font-weight: normal;
    font-size: 0.8em;
    padding: 20px;
    text-align: center;
    margin: 40px 0;
    background-color: #222;
    color: white;
}

footer {
    font-weight: bold;
    text-align: center;
    margin: 10px 0;
    width: 100%;
}

footer a {
    padding: 10px;
}

a {
    text-decoration: none;
    color: #4c4c4c;
    transition: 300ms ease-in-out;
}

a:hover {
    color: #E94B3CFF;
}

@media screen and (min-width: 768px) {
    main {
        display: grid;
        grid-template-columns: 700px;
    }

    img {
        min-width: 500px;
        max-width: 600px;
    }

}

@media screen and (max-width: 768px) {
    img {
        min-width: 200px;
        max-width: 300px;
    }
    
}

@media screen and (max-width: 400px) {
    img {
        min-width: 100px;
        max-width: 250px;
    }

}