HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.
In CodePen, whatever you write in the HTML editor is what goes within the <body>
tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html>
tag. If you want to add classes there that can affect the whole document, this is the place to do it.
In CodePen, whatever you write in the HTML editor is what goes within the <body>
tags in a basic HTML5 template. If you need things in the <head>
of the document, put that code here.
The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.
CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.
It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.
To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit-
or -moz-
.
We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).
Any URLs added here will be added as <link>
s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.
You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.
You can also link to another Pen here (use the .css
URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.
JavaScript preprocessors can help make authoring JavaScript easier and more convenient.
Babel includes JSX processing.
Any URL's added here will be added as <script>
s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.
You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.
If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.
You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.
Search for and use JavaScript packages from npm here. By selecting a package, an import
statement will be added to the top of the JavaScript editor for this package.
Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.
All packages are different, so refer to their docs for how they work.
If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.
If active, Pens will autosave every 30 seconds after being saved once.
If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.
If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.
Visit your global Editor Settings.
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<title></title> <!-- The title tag shows in email notifications, like Android 4.4. -->
<meta charset="utf-8"> <!-- utf-8 works for most cases -->
<meta name="viewport" content="width=device-width"> <!-- Forcing initial-scale shouldn't be necessary -->
<meta http-equiv="X-UA-Compatible" content="IE=edge"> <!-- Use the latest (edge) version of IE rendering engine -->
<meta name="x-apple-disable-message-reformatting"> <!-- Disable auto-scale in iOS 10 Mail entirely -->
<meta name="format-detection" content="telephone=no,address=no,email=no,date=no,url=no"> <!-- Tell iOS not to automatically link certain text strings. -->
<!-- CSS Reset : BEGIN -->
<style>
/* What it does: Remove spaces around the email design added by some email clients. */
/* Beware: It can remove the padding / margin and add a background color to the compose a reply window. */
html,
body {
margin: 0 auto !important;
padding: 0 !important;
height: 100% !important;
width: 100% !important;
}
/* What it does: Stops email clients resizing small text. */
* {
-ms-text-size-adjust: 100%;
-webkit-text-size-adjust: 100%;
}
/* What it does: Centers email on Android 4.4 */
div[style*="margin: 16px 0"] {
margin:0 !important;
}
/* What it does: Stops Outlook from adding extra spacing to tables. */
table,
td {
mso-table-lspace: 0pt !important;
mso-table-rspace: 0pt !important;
}
/* What it does: Fixes webkit padding issue. */
table {
border: 0;
border-spacing: 0;
border-collapse: collapse
}
/* What it does: Forces Samsung Android mail clients to use the entire viewport. */
#MessageViewBody,
#MessageWebViewDiv{
width: 100% !important;
}
/* What it does: Uses a better rendering method when resizing images in IE. */
img {
-ms-interpolation-mode:bicubic;
}
/* What it does: Prevents Windows 10 Mail from underlining links despite inline CSS. Styles for underlined links should be inline. */
a {
text-decoration: none;
}
/* What it does: A work-around for email clients automatically linking certain text strings. */
/* iOS */
a[x-apple-data-detectors],
.unstyle-auto-detected-links a,
.aBn {
border-bottom: 0 !important;
cursor: default !important;
color: inherit !important;
text-decoration: none !important;
font-size: inherit !important;
font-family: inherit !important;
font-weight: inherit !important;
line-height: inherit !important;
}
u + #body a, /* Gmail */
#MessageViewBody a /* Samsung Mail */
{
color: inherit;
text-decoration: none;
font-size: inherit;
font-family: inherit;
font-weight: inherit;
line-height: inherit;
}
/* What it does: Prevents Gmail from changing the text color in conversation threads. */
.im {
color: inherit !important;
}
/* What it does: Prevents Gmail from displaying an download button on large, non-linked images. */
.a6S {
display: none !important;
opacity: 0.01 !important;
}
/* If the above doesn't work, add a .g-img class to any image in question. */
img.g-img + div {
display:none !important;
}
/* What it does: Removes right gutter in Gmail iOS app: https://github.com/TedGoas/Cerberus/issues/89 */
/* Create one of these media queries for each additional viewport size you'd like to fix */
/* iPhone 4, 4S, 5, 5S, 5C, and 5SE */
@media only screen and (min-device-width: 320px) and (max-device-width: 374px) {
u ~ div .email-container {
min-width: 320px !important;
}
}
/* iPhone 6, 6S, 7, 8, and X */
@media only screen and (min-device-width: 375px) and (max-device-width: 413px) {
u ~ div .email-container {
min-width: 375px !important;
}
}
/* iPhone 6+, 7+, and 8+ */
@media only screen and (min-device-width: 414px) {
u ~ div .email-container {
min-width: 414px !important;
}
}
</style>
<!-- What it does: Helps DPI scaling in Outlook 2007-2013 -->
<!--[if gte mso 9]>
<xml>
<o:OfficeDocumentSettings>
<o:AllowPNG/>
<o:PixelsPerInch>96</o:PixelsPerInch>
</o:OfficeDocumentSettings>
</xml>
<![endif]-->
<!-- CSS Reset : END -->
<!-- Progressive Enhancements : BEGIN -->
<style>
/* What it does: Hover styles for buttons and tags */
.s-btn__primary:hover {
background: #0077CC !important;
border-color: #0077CC !important;
}
.s-btn__white:hover {
background: #EFF0F1 !important;
border-color: #EFF0F1 !important;
}
.s-btn__outlined:hover {
background: rgba(0,119,204,.05) !important;
color: #005999 !important;
}
.s-tag:hover,
.post-tag:hover {
border-color: #cee0ed !important;
background: #cee0ed !important;
}
/* What it does: Styles markdown links that we can't write inline CSS for. */
.has-markdown a,
.has-markdown a:visited {
color: #0077CC !important;
text-decoration: none !important;
}
/* What it does: Styles markdown code blocks that we can't write inline CSS for. */
code {
padding: 1px 5px;
background-color: #EFF0F1;
color: #242729;
font-size: 13px;
line-height: inherit;
font-family: Consolas, Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace, sans-serif;
}
pre {
margin: 0 0 15px;
line-height: 17px;
background-color: #EFF0F1;
padding: 4px 8px;
border-radius: 3px;
overflow-x: auto;
}
pre code {
margin: 0 0 15px;
padding: 0;
line-height: 17px;
background-color: none;
}
/* What it does: Styles markdown blockquotes that we can't write inline CSS for. */
blockquote {
margin: 0 0 15px;
padding: 4px 10px;
background-color: #FFF8DC;
border-left: 2px solid #ffeb8e;
}
blockquote p {
padding: 4px 0;
margin: 0;
overflow-wrap: break-word;
}
/* What it does: Rounds corners in email clients that support it */
.bar {
border-radius: 5px;
}
.btr {
border-top-left-radius: 5px;
border-top-right-radius: 5px;
}
.bbr {
border-bottom-left-radius: 5px;
border-bottom-right-radius: 5px;
}
@media screen and (max-width: 680px) {
/* What it does: Forces table cells into full-width rows. */
.stack-column,
.stack-column-center {
display: block !important;
width: 100% !important;
max-width: 100% !important;
direction: ltr !important;
}
/* And center justify these ones. */
.stack-column-center {
text-align: center !important;
}
/* Hides things in small viewports. */
.hide-on-mobile {
display: none !important;
max-height: 0 !important;
overflow: hidden !important;
visibility: hidden !important;
}
/* What it does: Utility classes to reduce spacing for smaller viewports. */
.sm-p-none {padding: 0 !important;}
.sm-pt-none {padding-top: 0 !important;}
.sm-pb-none {padding-bottom: 0 !important;}
.sm-pr-none {padding-right: 0 !important;}
.sm-pl-none {padding-left: 0 !important;}
.sm-px-none {padding-left: 0 !important; padding-right: 0 !important;}
.sm-py-none {padding-top: 0 !important; padding-bottom: 0 !important;}
.sm-p {padding: 20px !important;}
.sm-pt {padding-top: 20px !important;}
.sm-pb {padding-bottom: 20px !important;}
.sm-pr {padding-right: 20px !important;}
.sm-pl {padding-left: 20px !important;}
.sm-px {padding-left: 20px !important; padding-right: 20px !important;}
.sm-py {padding-top: 20px !important; padding-bottom: 20px !important;}
.sm-mb {margin-bottom: 20px !important;}
/* What it does: Utility classes to kill border radius for smaller viewports. Used mainly on the email's main container(s). */
.bar,
.btr,
.bbr {
border-top-left-radius: 0;
border-top-right-radius: 0;
border-bottom-left-radius: 0;
border-bottom-right-radius: 0;
}
}
</style>
<!-- Progressive Enhancements : END -->
</head>
<!--
The email background color is defined in three places, just below. If you change one, remember to change the others.
1. body tag: for most email clients
2. center tag: for Gmail and Inbox mobile apps and web versions of Gmail, GSuite, Inbox, Yahoo, AOL, Libero, Comcast, freenet, Mail.ru, Orange.fr
3. mso conditional: For Windows 10 Mail
-->
<body width="100%" style="margin: 0; padding: 0 !important; background: #f3f3f5; mso-line-height-rule: exactly;">
<center style="width: 100%; background: #f3f3f5;">
<!--[if mso | IE]>
<table role="presentation" border="0" cellpadding="0" cellspacing="0" width="100%" style="background-color: #f3f3f5;">
<tr>
<td>
<![endif]-->
<!-- Visually Hidden Preview Text : BEGIN -->
<div style="display: none; font-size: 1px; line-height: 1px; max-height: 0px; max-width: 0px; opacity: 0; overflow: hidden; mso-hide: all; font-family: sans-serif;">
(Optional) This text will appear in the inbox preview, but not the email body. It can be used to supplement the email subject line or even summarize the email's contents. Extended text preheaders (~490 characters) seems like a better UX for anyone using a screenreader or voice-command apps like Siri to dictate the contents of an email. If this text is not included, email clients will automatically populate it using the text (including image alt text) at the start of the email's body.
</div>
<!-- Visually Hidden Preview Text : END -->
<div class="email-container" style="max-width: 680px; margin: 0 auto;">
<!--[if mso]>
<table role="presentation" cellspacing="0" cellpadding="0" border="0" width="680" align="center">
<tr>
<td>
<![endif]-->
<table border="0" cellpadding="0" cellspacing="0" role="presentation" style="max-width: 680px; width:100%">
<!-- Logo : BEGIN -->
<tr>
<td style="padding: 20px 30px; text-align: left;" class="sm-px">
<a href="https://stackoverflow.com/">
<img src="https://stackoverflow.design/email/templates/code/Logo@2x.png" alt="Stack Overflow logo." border="0" height="36" width="146" style="display: block; font-family: arial, sans-serif; font-size: 15px; line-height: 15px; color: #3C3F44; margin: 0;">
</a>
</td>
</tr>
<!-- Logo : END -->
<!-----------------------------
EMAIL BODY : BEGIN
------------------------------>
<tr>
<td style="padding: 30px; background-color: #ffffff;" class="sm-p bar">
<table border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
<tr>
<!-- Voting : BEGIN -->
<!--[if mso]><p style="display: none;"><![endif]-->
<form class="vote">
<td style="vertical-align: top; padding-right: 10px;">
<table border="0" cellpadding="0" cellspacing="0" role="presentation">
<tr>
<td>
<input type="radio" name="vote" id="ArrowUpLg" style="display: none!important; max-height: 0; visibility: hidden;">
<label for="ArrowUpLg" class="ArrowUpLg" style="cursor: pointer;">
<img src="https://d2axdqolvqmdvx.cloudfront.net/cad2e140-5728-4d5e-9665-1d127b8817ae/ArrowUpLg.png" height="36" width="36" id="" style="">
</label>
<input type="radio" name="vote" id="ArrowUpLgactive" style="display: none!important; max-height: 0; visibility: hidden;">
<label for="ArrowUpLgactive" class="ArrowUpLgactive" style="cursor: pointer; display: none;">
<img src="https://d2axdqolvqmdvx.cloudfront.net/585a1681-08de-4736-9e5e-b020d209246b/ArrowUpLgactive.png" height="36" width="36" id="" style="">
</label>
</td>
</tr>
<tr>
<td>
<input type="radio" name="vote" id="ArrowDownLg" style="display: none!important; max-height: 0; visibility: hidden;">
<label for="ArrowDownLg" class="ArrowDownLg" style="cursor: pointer;">
<img src="https://d2axdqolvqmdvx.cloudfront.net/3d98533e-42ec-41fb-9493-c967eedd07e4/ArrowDownLg.png" height="36" width="36" id="" style="">
</label>
<input type="radio" name="vote" id="ArrowDownLgactive" style="display: none!important; max-height: 0; visibility: hidden;">
<label for="ArrowDownLgactive" class="ArrowDownLgactive" style="cursor: pointer; display: none;">
<img src="https://d2axdqolvqmdvx.cloudfront.net/627608b5-ff27-4b7a-9436-e4f7affe0642/ArrowDownLgactive.png" height="36" width="36" id="" style="">
</label>
</td>
</tr><tr>
<td>
<input type="radio" name="accept" id="CheckmarkLg" style="display: none!important; max-height: 0; visibility: hidden;">
<label for="CheckmarkLg" class="CheckmarkLg" style="cursor: pointer;">
<img src="https://d2axdqolvqmdvx.cloudfront.net/2dab410c-8109-489b-ae5b-c366d64ee08d/CheckmarkLg.png" height="36" width="36" id="" style="">
</label>
<input type="radio" name="accept" id="CheckmarkLgactive" style="display: none!important; max-height: 0; visibility: hidden;">
<label for="CheckmarkLgactive" class="CheckmarkLgactive" style="cursor: pointer; display: none;">
<img src="https://d2axdqolvqmdvx.cloudfront.net/6f95dcfa-5db9-4cce-b13b-cbf64c7eb4a8/CheckmarkLgactive.png" height="36" width="36" id="" style="">
</label>
</td>
</tr>
</table>
</td>
</form>
<!--[if !mso]></p><![endif]-->
<!-- Voting : END -->
<td style="padding: 5px 0; font-family: arial, sans-serif; font-size: 15px; line-height: 21px; color: #3C3F44; text-align: left;">
<h1 style="font-weight: normal; font-size: 21px; line-height: 24px; color: #0C0D0E; margin: 0 0 15px 0;"><a href="#" style="color: #0077cc; text-decoration: none;">What is the average cost of hosting?</a></h1>
<p style="margin: 0 0 15px;" class="has-markdown">For the average customer, we're looking at about <strong>~$100/mo</strong> of directing hosting costs, so <strong>$1200/yr</strong>. Enabling email for a customer doesn't really affect our hosting cost. Enabling file uploads would effectively double our hosting cost.</p>
<p style="margin: 0 0 15px;" class="has-markdown">Those costs are with no compute reservations purchased. We get a discount on some of the hosting costs if we purchase a reservation (basically telling our host that we know we're going to run this certain workload for at least a year so we'll prepay a portion of the cost).</p>
<p style="margin: 0 0 15px;" class="has-markdown"><strong>$1200/yr</strong> is the directing hosting cost for a customer instance. There is supporting infrastructure we run that has a cost all it's own and grows as we increase the number of hosted instances.</p>
<p style="margin: 0 0 15px;" class="has-markdown">Happy to help if you need more information than that.</p>
<p style="margin: 0; font-size: 13px; color: #6a737c;" class="has-markdown">Comment by replying to this email.</p>
</td>
</tr>
</table>
</td>
</tr>
<!-----------------------------
EMAIL BODY : END
------------------------------>
<!-- Footer : BEGIN -->
<tr>
<td style="padding: 30px;" class="sm-p">
<table align="left" border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
<!-- Subscription Info : BEGIN -->
<tr>
<td style="padding-bottom: 10px; font-size: 12px; line-height: 15px; font-family: arial, sans-serif; color: #9199A1; text-align: left;">
You're receiving this message because $reason$.
</td>
</tr>
<tr>
<td style="font-size: 12px; line-height: 15px; font-family: arial, sans-serif; color: #9199A1; text-align: left;">
<a href="https://stackoverflow.email/subscriptions/manage?{{#data}}"
style="color: #9199A1; text-decoration: underline;">Edit email settings</a>
<a href="https://stackoverflow.com/company/contact" style="color: #9199A1; text-decoration: underline;">Contact us</a>
<a href="Urls.Legal.PrivacyPolicy" style="color: #9EA3A9; text-decoration: underline;">Privacy</a>
</td>
</tr>
<!-- Subscription Info : BEGIN -->
<!-- HR line : BEGIN -->
<tr>
<td style="padding: 30px 0;" width="100%" class="sm-py">
<table aria-hidden="true" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%">
<tr>
<td height="1" width="100%" style="font-size: 0; line-height: 0; border-top: 1px solid #D6D8DB;"> </td>
</tr>
</table>
</td>
</tr>
<!-- HR line : END -->
<!-- Sender Info : BEGIN -->
<tr>
<td style="padding-bottom: 5px; text-align: left;">
<img src="https://stackoverflow.design/email/templates/code/LogoSm@2x.png" align="left" alt="" border="0" width="111" height="22" style="display: block; font-family: arial, sans-serif; font-size: 12px; line-height: 12px; color: #3C3F44;">
</td>
</tr>
<tr>
<td style="padding-bottom: 5px; font-size: 12px; line-height: 15px; font-family: arial, sans-serif; color: #9199A1; text-align: left;"><strong>Stack Overflow</strong>, <span class="unstyle-auto-detected-links">110 William Street, 28th Floor, New York, NY 10038</span></td>
</tr>
<!-- Sender Info : END -->
<!-- Heart : BEGIN -->
<tr>
<td>
<table align="left" border="0" cellpadding="0" cellspacing="0" role="presentation" style="background:#ffffff; border-radius:1px; line-height:0px">
<tr>
<td>
<div style="border-radius: 1px; border: 1px solid #D6D9DC; padding: 4px 6px 3px 6px; font-size: 11px; line-height: 11px; font-family: Consolas, monospace; color: #E06C77;" title="because we care"><3</div>
</td>
</tr>
</table>
</td>
</tr>
<!-- Heart : END -->
</table>
</td>
</tr>
<!-- Footer : END -->
</table>
</div>
<!--[if mso | IE]>
</td>
</tr>
</table>
<![endif]-->
</center>
</body>
</html>
#ArrowUpLg:checked + .ArrowUpLg {
display: none !important;
}
#ArrowUpLg:checked ~ .ArrowUpLgactive {
display: block !important;
}
#ArrowDownLg:checked + .ArrowDownLg {
display: none !important;
}
#ArrowDownLg:checked ~ .ArrowDownLgactive {
display: block !important;
}
#CheckmarkLg:checked + .CheckmarkLg {
display: none !important;
}
#CheckmarkLg:checked ~ .CheckmarkLgactive {
display: block !important;
}
Also see: Tab Triggers