HTML && CSS

Can be useful

pre {
    white-space: pre-wrap;
}
* {
    box-sizing: border-box;
}
#content {
    overflow-wrap: break-word;
}

Keyboard shortcuts to increase or decrease easily a color value in the Chrome Dev Tools

To increase use ARROW_UP, to decrease use ARROW_DOWN

• ARROW_UP + ALT to increase the two hexadecimals on the right

• ARROW_UP + SHIFT to increment the middle two hexadecimals

• ARROW_UP + CTRL to increment the left two hexadecimals

• ARROW_UP + CTRL + SHIFT + ALT to increment all hexadecimals pairs

SEO

• replace {title}, {desc}, {key}, {url}, {img}, {domain} with the corresponding values

<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>{title}</title>
<meta name="description" content={desc} />
<link rel="icon" href="/favicon.ico" />
<meta name="google-site-verification" content={key} />

<meta property="og:url" content={url} />
<meta property="og:type" content="website" />
<meta property="og:title" content={title} />
<meta property="og:description" content={desc} />
<meta property="og:image" content={img} />

<meta name="twitter:card" content="summary_large_image" />
<meta property="twitter:domain" content={domain} />
<meta property="twitter:url" content={url} />

<meta name="twitter:title" content={title} />
<meta name="twitter:description" content={desc} />
<meta name="twitter:image" content={img} />

• add a sitemap.xml to the root of the website