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.

Details

Privacy

Go PRO Window blinds lowered to protect code. Code Editor with window blinds (raised) and a light blub turned on.

Keep it secret; keep it safe.

Private Pens are hidden everywhere on CodePen, except to you. You can still share them and other people can see them, they just can't find them through searching or browsing.

Upgrade to PRO

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.

Template

Make Template?

Templates are Pens that can be used to start other Pens quickly from the create menu. The new Pen will copy all the code and settings from the template and make a new Pen (that is not a fork). You can view all of your templates, or learn more in the documentation.

Template URL

Any Pen can act as a template (even if you don't flip the toggle above) with a special URL you can use yourself or share with others. Here's this Pen's template URL:

Screenshot

Screenshot or Custom Thumbnail

Screenshots of Pens are shown in mobile browsers, RSS feeds, to users who chose images instead of iframes, and in social media sharing.

This Pen is using the default Screenshot, generated by CodePen. Upgrade to PRO to upload your own thumbnail that will be displayed on previews of this pen throughout the site and when sharing to social media.

Upgrade to PRO

HTML 

              
                <div id="clock"><svg></svg></div>
!

CSS 

              
                body {
  font-family: 'liquid_crystalregular', sans-serif;
  user-select: none;
  user-drag: none;
}

.clock {
  height: 100px;
  width: 100px;
}
!

JS 

              
                /**
	Created By: Anthony Datu
	Purpose: Modular Analog Clock
	Date: 07/16/2014
	Notes: This works in conjunction with moment.jsand moment-timezone.js
	How to use: 
		1) In html create <div id="clock"><svg></svg></div>
		2) Set div's height and width equal to each other(e.g 400px by 400px)
		3) Call new Clock() to instantiate object
		4) Call method generate("#clock","Manila") <--- City is optional, if no city 
		time will default to Local time.
	
	Clock Description:
		Between 6 am - 5pm, clock color is orange, otherwise gray. 
**/


function Clock() {
	var id;
	var city;
	var zone;
	var time_adj = [];
	
	this.getTime = function(){
		var timeDegrees = [];
		
		if(city === 'local'){
			timeDegrees['hour'] = parseInt(moment().format('h')) * 30 + (parseInt(moment().format('mm')) * .5);
			timeDegrees['minute'] = parseInt(moment().format('mm')) * 6;
			timeDegrees['second'] = parseInt(moment().format('ss')) * 6;
			
		}
		else if(time_adj.length > 0){
			
		}
		else{
			zone = city;
			timeDegrees['hour'] = parseInt(moment.tz(zone).format('h')) * 30 + (parseInt(moment.tz(zone).format('mm')) * .5);
			timeDegrees['minute'] = parseInt(moment.tz(zone).format('mm')) * 6;
			timeDegrees['second'] = parseInt(moment.tz(zone).format('ss')) * 6;

		}
		
		return timeDegrees;	
	}, 

	
	this.dayOrNight = function(){

		var time;
		
		if(city === 'local'){
			time = parseInt(moment().format('HH')) > 17 || parseInt(moment().format('HH')) < 6 ? 'night' : 'day';
		}else{
			time = parseInt(moment.tz(zone).format('HH')) > 17 || parseInt(moment.tz(zone).format('HH')) < 6 ? 'night' : 'day';
		}
		
		return time;
	},
	
	this.dateTicker = function(){
		var result;
		if(arguments[0] === undefined){
			if(zone){
				result = moment.tz(zone).format('ddd D');
			}else{
				result = moment().format('ddd D');
			}
		}else{		// digital clock
			if(zone){
				result = moment.tz(zone).format('HH:mm');
			}else{

				result = moment().format('HH:mm');
			}
		}
		
		return result;
	},
	
	this.formatCity = function(){
		var formatted = city.replace(/^(\w+\/)*/gi,'');
		return formatted.replace("_", " ");
	},
	
	
	
	this.generate = function(){
		id = arguments[0];
		city = arguments[1] != undefined ? arguments[1] : "local" ;
		
		var el = document.querySelector(id);
		var height = el.clientHeight;
		var width = height;
	
		var ns = "http://www.w3.org/2000/svg";
		var position = height/2;
		
		/** Get Clock hands angles **/
		var time = this.getTime();
		var color = this.dayOrNight() === "night" ? "#005753" : "#FF760D";
		
		/** create clock face doms **/
		var svg = el.firstElementChild;
		var circle = document.createElementNS(ns, "circle");
		var dot = document.createElementNS(ns, "circle");
		var hourHand = document.createElementNS(ns, "line");
		var minuteHand = document.createElementNS(ns, "line");
		var secondHand = document.createElementNS(ns, "line");
		var datetext = document.createElementNS(ns, "text");
		datetext.appendChild( document.createTextNode(this.dateTicker()));
		var digitalclock = document.createElementNS(ns, "text");
		digitalclock.appendChild( document.createTextNode(this.dateTicker("get")));
		var cityName = document.createElementNS(ns,"text");
		cityName.appendChild(document.createTextNode(this.formatCity()));
		
		/**
		var numbers = [];
		for (var i = 1; i > 12; i++){
			numbers[i] = document.createElementNS(ns, "text");
			numbers[i].innerHTML = i;
			numbers[i].setAttribute("x", )
		} 
		**/
		
		/** Set the Attributes **/
		//Container
		svg.setAttribute("height", height);
		svg.setAttribute("width", width);
		
		//Clock face
		circle.setAttribute("cx", height/2);
		circle.setAttribute("cy", height/2);
		circle.setAttribute("r", (height/2 - (height * .035)));
		circle.setAttribute("fill", "transparent");
		circle.setAttribute("stroke", color);
		circle.setAttribute("stroke-width", (height * .035));
		
		//Clock center dot
		dot.setAttribute("cx", height/2);
		dot.setAttribute("cy", height/2);
		dot.setAttribute("r", (height * .033));
		dot.setAttribute("fill", color);

		
		//Hour Hand
		hourHand.setAttribute("x1", position);
		hourHand.setAttribute("y1", position);
		hourHand.setAttribute("x2", position);
		hourHand.setAttribute("y2", ((height/2) - (height/2 * .35)));
		hourHand.setAttribute("stroke", color);
		hourHand.setAttribute("stroke-width", (height * .04) + 'px');
		hourHand.setAttribute("stroke-linecap", 'round');
		hourHand.setAttribute("stroke-opacity", '.4');
		hourHand.setAttribute("fill", "transparent");
		hourHand.setAttribute("transform", "rotate( " + time['hour'] + " " + position +" " + position +")");
		
		//Minute Hand
		minuteHand.setAttribute("x1", height/2);
		minuteHand.setAttribute("y1", height/2);
		minuteHand.setAttribute("x2", height/2);
		minuteHand.setAttribute("y2", ((height/2) - (height/2 * .70)));
		minuteHand.setAttribute("stroke", color);
		minuteHand.setAttribute("stroke-width", (height * .03) + 'px');
		minuteHand.setAttribute("stroke-linecap", 'round');
		minuteHand.setAttribute("stroke-opacity", '.4');
		minuteHand.setAttribute("fill", "transparent");
		minuteHand.setAttribute("transform", "rotate( " + time['minute'] + " " + position +" " + position +")");
		
		//Second Hand
		secondHand.setAttribute("x1", height/2);
		secondHand.setAttribute("y1", height/2);
		secondHand.setAttribute("x2", height/2);
		secondHand.setAttribute("y2", ((height/2) - (height/2 * .80)));
		secondHand.setAttribute("stroke", color);
		secondHand.setAttribute("stroke-width", (height * .01) + 'px');
		secondHand.setAttribute("stroke-linecap", 'round');
		secondHand.setAttribute("stroke-opacity", '.4');
		secondHand.setAttribute("fill", "transparent");
		secondHand.setAttribute("transform", "rotate( " + time['second'] + " " + position +" " + position +")");
		
		//Text Date
		datetext.setAttribute("x", (width * .12));
		datetext.setAttribute("y", ((height/2) + (height * .1)));
		datetext.setAttribute("font-size", height / 2 * .13);
		datetext.setAttribute("fill", color);
		
		//Digital clock
		digitalclock.setAttribute("x",(width * .12));
		digitalclock.setAttribute("y", ((height/2) + (height * .16)));
		digitalclock.setAttribute("font-size", height / 2 * .16);
		digitalclock.setAttribute("fill", color);
		digitalclock.setAttribute("class", "digital");
		
		//City Name
		cityName.setAttribute("x", (width * .12));
		cityName.setAttribute("y", ((height/2) + (height * .2)));
		cityName.setAttribute("font-size", (height / 2 * .1));
		cityName.setAttribute("fill", color);
		cityName.setAttribute("class", "digital");
	

		/** Append the clock to the div **/	
		svg.appendChild(circle);
		svg.appendChild(datetext);
		svg.appendChild(digitalclock);
		svg.appendChild(cityName);
		svg.appendChild(hourHand);
		svg.appendChild(minuteHand);
		svg.appendChild(secondHand);
		svg.appendChild(dot);
		el.appendChild(svg);
		
		this._start(this);
	},
	
	this.updateHands = function(){
		//console.log(id);
		var div = document.querySelector(id);
		var cir = div.querySelectorAll("circle");
		var hands = div.querySelectorAll("line");	//Get SVG child nodes (clock hands) 
		var text = div.querySelectorAll("text");
		var position = div.clientHeight / 2;
		
		//Get the angles 
		var time = this.getTime();
		
		//console.log(time['second']);
		//update clock hands angles & text info
		hands[0].setAttribute("transform", "rotate( " + time['hour'] + " " + position +" " + position +")");
		hands[1].setAttribute("transform", "rotate( " + time['minute'] + " " + position +" " + position +")");
		hands[2].setAttribute("transform", "rotate( " + time['second'] + " " + position +" " + position +")");
		text[0].innerHTML = this.dateTicker();
		text[1].innerHTML = this.dateTicker("digitclock");
		
		var color = this.dayOrNight() === "night" ? "#005753" : "#FF760D";
		//update hands color
		for(var i = 0; i < hands.length; i++){
			hands[i].setAttribute("stroke", color);
		}
		
		//update texts color
		text[0].setAttribute("fill", color);
		text[1].setAttribute("fill", color);
		text[2].setAttribute("fill", color);
		
		cir[0].setAttribute("stroke", color);
		cir[1].setAttribute("fill", color);
	},
	
	this.adjustTime = function(time){
		time_adj['hr']  = time[0];
		time_adj['min'] = time[1];
		
	},
	
	this._start = function(obj){
		timer[id] = setInterval(function(){obj.updateHands()},1000);
	}
}
var c = new Clock();

c.generate('#clock');
!
999px
Learning 3D transforms in CSS requires a little perspective.

Console