html {
    background: #f5efef;
}

body {
    background: white;
    padding-top: 5px;
    padding-bottom: 10px;
    max-width: 900px;
    margin-top: 0px;
    margin-left: auto;
    margin-right: auto;
}

header {
    background: black;
    margin-left: auto;
    margin-right: auto;
    padding: 5px;
    width: 700px;
}

header h1 {
    color: white;
    margin-bottom: 3px;
}

header h2 {
    color: white;
    margin: 0px;
}

header p {
    color: white;
}

header a {
    color: white;
    text-decoration: none;
    text-shadow: none;
    transition: color 0.5s ease;
    transition: text-shadow 0.5s ease;
}
header a:hover, .markdown-container a:focus {
    text-decoration: underline;
}

header h3 {
    color: white;
    margin: 0px;
    margin-left: 10px;
    font-style: italic;
}

footer {
    margin-left: auto;
    margin-right: auto;
    width: 700px;
}
footer div {
    font-style: italic;
    color: gray;
    text-align: center;
    width: 100%;
}

.markdown-container {
    width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.markdown-container pre.code {
    background: #e2dddd;
    padding-left: 5px;
    padding-right: 5px;
    padding-top: 10px;
    padding-bottom: 10px;
    border-top: 1px solid black;
    border-bottom: 1px solid black;
    margin-left: 10px;
    margin-rigth: 10px;
}

.markdown-container code {
    background: #e2dddd;
    padding-left: 5px;
    padding-right: 5px;
}

.markdown-container a {
    text-decoration: none;
    color: #0F79D0;
    text-shadow: none;
    transition: color 0.5s ease;
    transition: text-shadow 0.5s ease;
}

.markdown-container a:hover, .markdown-container a:focus {
    text-decoration: underline;
}

.markdown-container h2 {
    margin-bottom: 0.2em;
}
.markdown-container h3 {
    margin-bottom: 0.2em;
}
.markdown-container h4 {
    margin-bottom: 0.2em;
}

.markdown-container h2 + p {
    margin-top: 0.2em;
}
.markdown-container h3 + p {
    margin-top: 0.2em;
}
.markdown-container h4 + p {
    margin-top: 0.2em;
}

.p-image {
    width: 75%;
    border: 1px solid #cec9c9;
    background: #f5efef;
    padding: 5px;
    margin: 0 auto;
}

.p-image img {
    display: block;
    margin-right: auto;
    margin-left: auto;
    width: 100%;
}

.p-image p {
    margin: 0px;
    margin-top: 5px;
}

@media only screen and (max-width: 450px) {
    header {
        width: 400px;
        padding: 5px;
        margin-left: auto;
        margin-right: auto;
    }

    footer {
        width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .markdown-container {
        width: 400px;
        padding: 5px;
        margin-left: auto;
        margin-right: auto;
    }
}