Pen Settings

HTML

About HTML Preprocessors

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.

Learn more · Versions

Adding Classes

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.

About the <head>

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.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

Learn more · Versions

CSS Base

About CSS Base

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.

Vendor Prefixing

About Vendor Prefixing

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).

Add External Stylesheets/Pens

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.

Powered by Algolia
About External Resources

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.

Learn more

+ add another resource

JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

Learn more · Versions

Babel includes JSX processing.

Add External Scripts/Pens

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.

Powered by Algolia
About External Resources

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.

Learn more

+ add another resource

Packages

Add Packages

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.

Powered by Algolia
About Packages

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.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML 

              
                <div id="clock" class="light">
			<div class="display">
				<div class="weekdays"></div>
				<div class="ampm"></div>
				<div class="alarm"></div>
				<div class="digits"></div>
			</div>
		</div>

		<div class="button-holder">
			<a class="button">Switch Theme</a>
		</div>
<!-- JavaScript Includes -->
		<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
		<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.0.0/moment.min.js"></script>
!

CSS 

              
                /* Source: http://tutorialzine.com/2013/06/digital-clock/ */

/*-------------------------
	Simple reset
--------------------------*/


*{
	margin:0;
	padding:0;
}


/*-------------------------
	General Styles
--------------------------*/


html{
	background:url('../img/bg.jpg') #dbe4e6;
	overflow:hidden;
}

body{
	font:15px/1.3 Arial, sans-serif;
	color: #4f4f4f;
	z-index:1;
}

a, a:visited {
	outline:none;
	color:#389dc1;
}

a:hover{
	text-decoration:none;
}

section, footer, header, aside{
	display: block;
}


/*-------------------------
	The clocks
--------------------------*/


#clock{
	width:370px;
	padding:40px;
	margin:100px auto 60px;
	position:relative;
}

#clock:after{
	content:'';
	position:absolute;
	width:400px;
	height:20px;
	border-radius:100%;
	left:50%;
	margin-left:-200px;
	bottom:2px;
	z-index:-1;
}


#clock .display{
	text-align:center;
	padding: 40px 20px 20px;
	border-radius:6px;
	position:relative;
	height: 54px;
}


/*-------------------------
	Light color theme
--------------------------*/


#clock.light{
	background-color:#f3f3f3;
	color:#272e38;
}

#clock.light:after{
	box-shadow:0 4px 10px rgba(0,0,0,0.15);
}

#clock.light .digits div span{
	background-color:#272e38;
	border-color:#272e38;	
}

#clock.light .digits div.dots:before,
#clock.light .digits div.dots:after{
	background-color:#272e38;
}

#clock.light .alarm{
	background:url('../img/alarm_light.jpg');
}

#clock.light .display{
	background-color:#dddddd;
	box-shadow:0 1px 1px rgba(0,0,0,0.08) inset, 0 1px 1px #fafafa;
}


/*-------------------------
	Dark color theme
--------------------------*/


#clock.dark{
	background-color:#272e38;
	color:#cacaca;
}

#clock.dark:after{
	box-shadow:0 4px 10px rgba(0,0,0,0.3);
}

#clock.dark .digits div span{
	background-color:#cacaca;
	border-color:#cacaca;	
}

#clock.dark .alarm{
	background:url('../img/alarm_dark.jpg');
}

#clock.dark .display{
	background-color:#0f1620;
	box-shadow:0 1px 1px rgba(0,0,0,0.08) inset, 0 1px 1px #2d3642;
}

#clock.dark .digits div.dots:before,
#clock.dark .digits div.dots:after{
	background-color:#cacaca;
}


/*-------------------------
	The Digits
--------------------------*/


#clock .digits div{
	text-align:left;
	position:relative;
	width: 28px;
	height:50px;
	display:inline-block;
	margin:0 4px;
}

#clock .digits div span{
	opacity:0;
	position:absolute;

	-webkit-transition:0.25s;
	-moz-transition:0.25s;
	transition:0.25s;
}

#clock .digits div span:before,
#clock .digits div span:after{
	content:'';
	position:absolute;
	width:0;
	height:0;
	border:5px solid transparent;
}

#clock .digits .d1{			height:5px;width:16px;top:0;left:6px;}
#clock .digits .d1:before{	border-width:0 5px 5px 0;border-right-color:inherit;left:-5px;}
#clock .digits .d1:after{	border-width:0 0 5px 5px;border-left-color:inherit;right:-5px;}

#clock .digits .d2{			height:5px;width:16px;top:24px;left:6px;}
#clock .digits .d2:before{	border-width:3px 4px 2px;border-right-color:inherit;left:-8px;}
#clock .digits .d2:after{	border-width:3px 4px 2px;border-left-color:inherit;right:-8px;}

#clock .digits .d3{			height:5px;width:16px;top:48px;left:6px;}
#clock .digits .d3:before{	border-width:5px 5px 0 0;border-right-color:inherit;left:-5px;}
#clock .digits .d3:after{	border-width:5px 0 0 5px;border-left-color:inherit;right:-5px;}

#clock .digits .d4{			width:5px;height:14px;top:7px;left:0;}
#clock .digits .d4:before{	border-width:0 5px 5px 0;border-bottom-color:inherit;top:-5px;}
#clock .digits .d4:after{	border-width:0 0 5px 5px;border-left-color:inherit;bottom:-5px;}

#clock .digits .d5{			width:5px;height:14px;top:7px;right:0;}
#clock .digits .d5:before{	border-width:0 0 5px 5px;border-bottom-color:inherit;top:-5px;}
#clock .digits .d5:after{	border-width:5px 0 0 5px;border-top-color:inherit;bottom:-5px;}

#clock .digits .d6{			width:5px;height:14px;top:32px;left:0;}
#clock .digits .d6:before{	border-width:0 5px 5px 0;border-bottom-color:inherit;top:-5px;}
#clock .digits .d6:after{	border-width:0 0 5px 5px;border-left-color:inherit;bottom:-5px;}

#clock .digits .d7{			width:5px;height:14px;top:32px;right:0;}
#clock .digits .d7:before{	border-width:0 0 5px 5px;border-bottom-color:inherit;top:-5px;}
#clock .digits .d7:after{	border-width:5px 0 0 5px;border-top-color:inherit;bottom:-5px;}


/* 1 */

#clock .digits div.one .d5,
#clock .digits div.one .d7{
	opacity:1;
}

/* 2 */

#clock .digits div.two .d1,
#clock .digits div.two .d5,
#clock .digits div.two .d2,
#clock .digits div.two .d6,
#clock .digits div.two .d3{
	opacity:1;
}

/* 3 */

#clock .digits div.three .d1,
#clock .digits div.three .d5,
#clock .digits div.three .d2,
#clock .digits div.three .d7,
#clock .digits div.three .d3{
	opacity:1;
}

/* 4 */

#clock .digits div.four .d5,
#clock .digits div.four .d2,
#clock .digits div.four .d4,
#clock .digits div.four .d7{
	opacity:1;
}

/* 5 */

#clock .digits div.five .d1,
#clock .digits div.five .d2,
#clock .digits div.five .d4,
#clock .digits div.five .d3,
#clock .digits div.five .d7{
	opacity:1;
}

/* 6 */

#clock .digits div.six .d1,
#clock .digits div.six .d2,
#clock .digits div.six .d4,
#clock .digits div.six .d3,
#clock .digits div.six .d6,
#clock .digits div.six .d7{
	opacity:1;
}


/* 7 */

#clock .digits div.seven .d1,
#clock .digits div.seven .d5,
#clock .digits div.seven .d7{
	opacity:1;
}

/* 8 */

#clock .digits div.eight .d1,
#clock .digits div.eight .d2,
#clock .digits div.eight .d3,
#clock .digits div.eight .d4,
#clock .digits div.eight .d5,
#clock .digits div.eight .d6,
#clock .digits div.eight .d7{
	opacity:1;
}

/* 9 */

#clock .digits div.nine .d1,
#clock .digits div.nine .d2,
#clock .digits div.nine .d3,
#clock .digits div.nine .d4,
#clock .digits div.nine .d5,
#clock .digits div.nine .d7{
	opacity:1;
}

/* 0 */

#clock .digits div.zero .d1,
#clock .digits div.zero .d3,
#clock .digits div.zero .d4,
#clock .digits div.zero .d5,
#clock .digits div.zero .d6,
#clock .digits div.zero .d7{
	opacity:1;
}


/* The dots */

#clock .digits div.dots{
	width:5px;
}

#clock .digits div.dots:before,
#clock .digits div.dots:after{
	width:5px;
	height:5px;
	content:'';
	position:absolute;
	left:0;
	top:14px;
}

#clock .digits div.dots:after{
	top:34px;
}


/*-------------------------
	The Alarm
--------------------------*/


#clock .alarm{
	width:16px;
	height:16px;
	bottom:20px;
	background:url('../img/alarm_light.jpg');
	position:absolute;
	opacity:0.2;
}

#clock .alarm.active{
	opacity:1;
}


/*-------------------------
	Weekdays
--------------------------*/


#clock .weekdays{
	font-size:12px;
	position:absolute;
	width:100%;
	top:10px;
	left:0;
	text-align:center;
}


#clock .weekdays span{
	opacity:0.2;
	padding:0 10px;
}

#clock .weekdays span.active{
	opacity:1;
}


/*-------------------------
		AM/PM
--------------------------*/


#clock .ampm{
	position:absolute;
	bottom:20px;
	right:20px;
	font-size:12px;
}


/*-------------------------
		Button
--------------------------*/


.button-holder{
	text-align:center;
	padding-bottom:100px;
}

a.button{
	background-color:#f6a7b3;
	
	background-image:-webkit-linear-gradient(top, #f6a7b3, #f0a3af);
	background-image:-moz-linear-gradient(top, #f6a7b3, #f0a3af);
	background-image:linear-gradient(top, #f6a7b3, #f0a3af);

	border:1px solid #eb9ba7;
	border-radius:2px;

	box-shadow:0 2px 2px #ccc;

	color:#fff;
	text-decoration: none !important;
	padding:15px 20px;
	display:inline-block;
	cursor:pointer;
}

a.button:hover{
	opacity:0.9;
}


/*----------------------------
	The Demo Footer
-----------------------------*/


footer{

	width: 770px;
	font: normal 16px Arial, Helvetica, sans-serif;
	padding: 15px 35px;
	position: fixed;
	bottom: 0;
	left: 50%;
	margin-left: -420px;

	background-color:#1f1f1f;

	background-image:-webkit-linear-gradient(top, #1f1f1f, #101010);
	background-image:-moz-linear-gradient(top, #1f1f1f, #101010);
	background-image:linear-gradient(top, #1f1f1f, #101010);

	border-radius:2px 2px 0 0;

	box-shadow: 0 -1px 4px rgba(0,0,0,0.4);
	z-index:1;
}

footer a.tz{
	font-weight:normal;
	font-size:16px !important;
	text-decoration:none !important;
	display:block;
	margin-right: 300px;
	text-overflow:ellipsis;
	white-space: nowrap;
	color:#bfbfbf !important;
	z-index:1;
}

footer a.tz:before{
	content: '';
	background: url('http://cdn.tutorialzine.com/misc/enhance/v2_footer_bg.png') no-repeat 0 -53px;
	width: 138px;
	height: 20px;
	display: inline-block;
	position: relative;
	bottom: -3px;
}

footer .close{
	position: absolute;
	cursor: pointer;
	width: 8px;
	height: 8px;
	background: url('http://cdn.tutorialzine.com/misc/enhance/v2_footer_bg.png') no-repeat 0 0px;
	top:10px;
	right:10px;
	z-index: 3;
}

footer #tzine-actions{
	position: absolute;
	top: 8px;
	width: 500px;
	right: 50%;
	margin-right: -650px;
	text-align: right;
	z-index: 2;
}

footer #tzine-actions iframe{
	display: inline-block;
	height: 21px;
	width: 95px;
	position: relative;
	float: left;
	margin-top: 11px;
}
!

JS 

              
                $(function(){

    // Cache some selectors

    var clock = $('#clock'),
        alarm = clock.find('.alarm'),
        ampm = clock.find('.ampm');

    // Map digits to their names (this will be an array)
    var digit_to_name = 'zero one two three four five six seven eight nine'.split(' ');

    // This object will hold the digit elements
    var digits = {};

    // Positions for the hours, minutes, and seconds
    var positions = [
        'h1', 'h2', ':', 'm1', 'm2', ':', 's1', 's2'
    ];

    // Generate the digits with the needed markup,
    // and add them to the clock

    var digit_holder = clock.find('.digits');

    $.each(positions, function(){

        if(this == ':'){
            digit_holder.append('<div class="dots">');
        }
        else{

            var pos = $('<div>');

            for(var i=1; i<8; i++){
                pos.append('<span class="d' + i + '">');
            }

            // Set the digits as key:value pairs in the digits object
            digits[this] = pos;

            // Add the digit elements to the page
            digit_holder.append(pos);
        }

    });

    // Add the weekday names

    var weekday_names = 'SUN MON TUE WED THU FRI SAT'.split(' '),
        weekday_holder = clock.find('.weekdays');

    $.each(weekday_names, function(){
        weekday_holder.append('<span>' + this + '</span>');
    });

    var weekdays = clock.find('.weekdays span');

    // Run a timer every second and update the clock

    (function update_time(){

        // Use moment.js to output the current time as a string
        // hh is for the hours in 12-hour format,
        // mm - minutes, ss-seconds (all with leading zeroes),
        // d is for day of week and A is for AM/PM

        var now = moment().format("hhmmssdA");

        digits.h1.attr('class', digit_to_name[now[0]]);
        digits.h2.attr('class', digit_to_name[now[1]]);
        digits.m1.attr('class', digit_to_name[now[2]]);
        digits.m2.attr('class', digit_to_name[now[3]]);
        digits.s1.attr('class', digit_to_name[now[4]]);
        digits.s2.attr('class', digit_to_name[now[5]]);

        // The library returns Sunday as the first day of the week.
        // Stupid, I know. Lets shift all the days one position down, 
        // and make Sunday last

        var dow = now[6];
        dow--;

        // Sunday!
        if(dow < 0){
            // Make it last
            dow = 6;
        }

        // Mark the active day of the week
        weekdays.removeClass('active').eq(dow).addClass('active');

        // Set the am/pm text:
        ampm.text(now[7]+now[8]);

        // Schedule this function to be run again in 1 sec
        setTimeout(update_time, 1000);

    })();

    // Switch the theme

    $('a.button').click(function(){
        clock.toggleClass('light dark');
    });

});
!
999px

Console