html {
    background: #fff;
    height: 100%;
    -webkit-font-smoothing: antialiased;
    margin: 0;
}

body {
    background: #fff;
    color: #545454;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    margin: 0 auto;
    max-width: 800px;
    padding: 2em 2em 4em;
}

header {
    background-color: green;
    top: 0em;
    height: 100px;
    width: 110%;
    margin: -10px;
    z-index: 1;
}

logo {
    height: 100%;
    width: 100%;
    position: left;
    left: 2rem;
    top: 2rem;
    cursor: pointer;
}

h1, h2, h3, h4, h5, h6 {
    color: #222;
    font-weight: 600;
    line-height: 1.3;
}
h1 {
    font-size: 30px;    
}


h2 {
    margin-top: 1.3em;
    margin-bottom: .5em;
}

h3 {
    color: gray;
    display: inline;
}

a {
    color: green;
}

b, strong {
    font-weight: 600;
    color: forestgreen;
}

hr {
    margin-top: 1.5em;
    margin-bottom: 0.7em;
    outline-color: red;
}

video {
    margin-top: 0.7em;
    margin-bottom: 0.7em;
}

.fit {
    font-size: 15px;
    background-color: none;
    font-weight: 600;
    margin-left: 2em;
}

samp {
    display: none;
}

img {
    animation: colorize 2s cubic-bezier(0, 0, .78, .36) 1;
    background: transparent;
    display: block;
    margin: 1.3em auto;
    max-width: 100%;
}

@keyframes colorize {
    0% {
        -webkit-filter: grayscale(100%);
        filter: grayscale(100%);
    }
    100% {
        -webkit-filter: grayscale(0%);
        filter: grayscale(0%);
    }
}