style.css

/*
https://www.cssfontstack.com/
*/

body {
    margin: 0;
    padding: 0;
    overflow: auto;
    /*sans-serif for non-curly*/
    font-family: sans-serif;
    font-size: 16px;
    line-height: 1.4em;
}

h1, h2, h3, h4 {
    font-family: serif;
    font-weight: 400;
}

h1 {
    font-size: 2.5em;
    margin-block-end: 0.5em;
}

h2 { font-size: 2em; }
h3 { font-size: 1.4em; }
h4 { font-size: 1em; }

img {
    width: 100%;
}

.half_img {
    width: calc(100%/2);
    display: inline-block;
}

.third_img {
    width: calc(100%/3);
    display: inline-block;
}

.quater_img {
    width: calc(100%/4);
    display: inline-block;
}

.no_underline {
    text-decoration: none;
}

code, pre {
    font-family: monospace;
    background-color: #e5e5e5;
}

code {
    font-size: 0.8em;
    padding: 0.3em;
}

pre {
    overflow-x: auto;
    font-size: 0.9em;
    padding: 1em;
}

video {
    width: 100%;
}

li {
    margin: 0.5em 0 0.5em 0;
}