* {
    margin: 0px;
    padding: 0px;
}

body {
    background-color: #F5F5F5;
    color: #010814;

    display: flex;
    flex-direction: column;
    min-height: 100vh;


    margin-left: auto;
    margin-right: auto;
    max-width: 900px;
    padding-left: 1rem;
    padding-right: 1rem;

    font-family: Consolas;
    font-size: 18px;
}

header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;

    padding: 1.5rem 0rem 0.2rem;
    border-bottom: #666 2px solid;
}

header > h1{
    font-size: 1em;
    font-weight: 900;
}

nav {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
}

header > a  {
    display: flex;
}

main {
    padding-top: 1rem;
    padding-bottom: 1.2rem;
    flex-grow: 1;
}

main > h1 {
    padding-top: 1rem;
    padding-bottom: 0.2rem;
}

main > h2 {
    padding-top: 2.5rem;
    padding-bottom: 0.2rem;
}

main > h3 {
    padding-top: 2.5rem;
    padding-bottom: 0.2rem;
}

footer {
    justify-self: end;
    font-size: 0.8rem;

    border-top: #666 1px solid;
    padding: 0.2rem 0rem 1rem;
    text-align: center;
}

p {
    padding-top: 0.8rem;
    padding-bottom: 0.2rem;
}

code {
    font-size: 0.8rem;
    margin-bottom: 1.0rem;
}

li {
    margin-left: 1.4rem;
}

img {
    width: 100%;
    height: auto;
}

a:link, a:visited {
    color: #F26419;
}

.iframe-container {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding-top: 56.25%;
}

.responsive-iframe {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
}