Unable to see div inside canvas - html

I am working on the following code. Why am I not able to see the dot class in the Canvas?
canvas {
height: 200px;
width: 200px;
background: white;
position: relative
}
.overlay {
position: absolute;
top: 20px;
left: 30px;
}
.dot {
background: #eee;
height: 10px;
width: 10px;
border-radius: 25px;
}
<canvas id="map">
<div class="overlay">
<div class="dot">
</div>
</div>
</canvas>

From https://www.w3schools.com/html/html5_canvas.asp:
The HTML <canvas> element is used to draw graphics, on the fly, via
JavaScript.
Any html inside the <canvas> element is treated as alternative content to be displayed in browsers not supporting <canvas>.

Related

Html bullet not appearing as expected [duplicate]

How do you draw a circle using HTML5 and CSS3?
Is it also possible to put text inside?
You can't draw a circle per se. But you can make something identical to a circle.
You'd have to create a rectangle with rounded corners (via border-radius) that are one-half the width/height of the circle you want to make.
#circle {
width: 50px;
height: 50px;
-webkit-border-radius: 25px;
-moz-border-radius: 25px;
border-radius: 25px;
background: red;
}
<div id="circle"></div>
It is quite possible in HTML 5. Your options are: Embedded SVG and <canvas> tag.
To draw circle in embedded SVG:
<svg xmlns="http://www.w3.org/2000/svg">
<circle cx="50" cy="50" r="50" fill="red" />
</svg>
Circle in <canvas>:
var canvas = document.getElementById("circlecanvas");
var context = canvas.getContext("2d");
context.arc(50, 50, 50, 0, Math.PI * 2, false);
context.fillStyle = "red";
context.fill()
<canvas id="circlecanvas" width="100" height="100"></canvas>
There are a few unicode circles you could use:
* { font-size: 50px; }
○
◌
◍
◎
●
More shapes here.
You can overlay text on the circles if you want to:
#container {
position: relative;
}
#circle {
font-size: 50px;
color: #58f;
}
#text {
z-index: 1;
position: absolute;
top: 21px;
left: 11px;
}
<div id="container">
<div id="circle">●</div>
<div id="text">a</div>
</div>
You could also use a custom font (like this one) if you want to have a higher chance of it looking the same on different systems since not all computers/browsers have the same fonts installed.
border-radius:50% if you want the circle to adjust to whatever dimensions the container gets (e.g. if the text is variable length)
Don't forget the -moz- and -webkit- prefixes! (prefixing no longer needed)
div{
border-radius: 50%;
display: inline-block;
background: lightgreen;
}
.a{
padding: 50px;
}
.b{
width: 100px;
height: 100px;
}
<div class='a'></div>
<div class='b'></div>
As of 2015, you can make it and center the text with as few as 15 lines of CSS (Fiddle):
body {
background-color: #fff;
}
#circle {
position: relative;
background-color: #09f;
margin: 20px auto;
width: 400px;
height: 400px;
border-radius: 200px;
}
#text {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
color: #fff;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>circle with text</title>
</head>
<body>
<div id="circle">
<div id="text">Text in the circle</div>
</div>
</body>
</html>
Without any -webkit-s, this works on IE11, Firefox, Chrome and Opera, and it is valid HTML5 (experimental) and CSS3.
Same on MS Edge (2020).
.circle{
height: 65px;
width: 65px;
border-radius: 50%;
border:1px solid red;
line-height: 65px;
text-align: center;
}
<div class="circle"><span>text</span></div>
border-radius: 50%; will turn all elements into a circle, regardless of size. At least, as long as the height and width of the target are the same, otherwise it will turn into an oval.
#target{
width: 100px;
height: 100px;
background-color: #aaa;
border-radius: 50%;
}
<div id="target"></div>
Note: browser prefixes are not needed anymore for border-radius
Alternatively, you can use clip-path: circle(); to turn an element into a circle as well. Even if the element has a greater width than height (or the other way around), it will still become a circle, and not an oval.
#target{
width: 200px;
height: 100px;
background-color: #aaa;
clip-path: circle();
}
<div id="target"></div>
Note: clip-path is not (yet) supported by all browsers
You can place text inside of the circle, simply by writing the text inside of the tags of the target, like so:
<div>text</div>
If you want to center text in the circle, you can do the following:
#target{
width: 100px;
height: 100px;
background-color: #aaa;
border-radius: 50%;
display: flex;
align-items: center;
}
#text{
width: 100%;
text-align: center;
}
<div id="target">
<div id="text">text</div>
</div>
You can use the border-radius attribute to give it a border-radius equivalent to the element's border-radius. For example:
<div style="border-radius 10px; -moz-border-radius 10px; -webkit-border-radius 10px; width: 20px; height: 20px; background: red; border: solid black 1px;"> </div>
(The reason for using the -moz and -webkit extensions is to support pre-CSS3-final versions of Gecko and Webkit.)
There are more examples on this page. As far as inserting text, you can do it but you have to be mindful of the positioning, as most browsers' box padding model still uses the outer square.
There is not technically a way to draw a circle with HTML (there isn’t a <circle> HTML tag), but a circle can be drawn.
The best way to draw one is to add border-radius: 50% to a tag such as div. Here’s an example:
<div style="width: 50px; height: 50px; border-radius: 50%;">You can put text in here.....</div>
You can use border-radius property, or make a div with fixed height and width and a background with png circle.
h1 {
border: dashed 2px blue;
width: 200px;
height: 200px;
border-radius: 100px;
text-align: center;
line-height: 60px;
}
<h1> <br>hello world</h1>
The followings are my 9 solutions. Feel free to insert text into the divs or svg elements.
border-radius
clip-path
html entity
pseudo element
radial-gradient
svg circle & path
canvas arc()
img tag
pre tag
var c = document.getElementById('myCanvas');
var ctx = c.getContext('2d');
ctx.beginPath();
ctx.arc(50, 50, 50, 0, 2 * Math.PI);
ctx.fillStyle = '#B90136';
ctx.fill();
#circle1 {
background-color: #B90136;
width: 100px;
height: 100px;
border-radius: 50px;
}
#circle2 {
background-color: #B90136;
width: 100px;
height: 100px;
clip-path: circle();
}
#circle3 {
color: #B90136;
font-size: 100px;
line-height: 100px;
}
#circle4::before {
content: "";
display: block;
width: 100px;
height: 100px;
border-radius: 50px;
background-color: #B90136;
}
#circle5 {
background-image: radial-gradient(#B90136 70%, transparent 30%);
height: 100px;
width: 100px;
}
<h3>1 border-radius</h3>
<div id="circle1"></div>
<hr/>
<h3>2 clip-path</h3>
<div id="circle2"></div>
<hr/>
<h3>3 html entity</h3>
<div id="circle3">⬤</div>
<hr/>
<h3>4 pseudo element</h3>
<div id="circle4"></div>
<hr/>
<h3>5 radial-gradient</h3>
<div id="circle5"></div>
<hr/>
<h3>6 svg circle & path</h3>
<svg width="100" height="100">
<circle cx="50" cy="50" r="50" fill="#B90136" />
</svg>
<hr/>
<h3>7 canvas arc()</h3>
<canvas id="myCanvas" width="100" height="100"></canvas>
<hr/>
<h3>8 img tag</h3>
<img src="circle.png" width="100" height="100" />
<hr/>
<h3>9 pre tag</h3>
<pre style="line-height:8px;">
+++
+++++
+++++++
+++++++++
+++++++++++
+++++++++++
+++++++++++
+++++++++
+++++++
+++++
+++
</pre>
Simply do the following in the script tags:
<!Doctype html>
<html>
<head>
<title>Circle Canvas</title>
</head>
<body>
<canvas id="myCanvas" width="300" height="150" style="border:1px solid
#d3d3d3;">
<body>
<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.beginPath();
ctx.arc(100, 75, 50, 0, 2 * Math.PI);
ctx.stroke();
</script>
</body>
</body>
</html>
And there you go you got your circle.
.at-counter-box {
border: 2px solid #1ac6ff;
width: 150px;
height: 150px;
border-radius: 100px;
font-family: 'Oswald Sans', sans-serif;
color:#000;
}
.at-counter-box-content {
position: relative;
}
.at-counter-content span {
font-size: 40px;
font-weight: bold ;
text-align: center;
position: relative;
top: 55px;
}
<head>
<style>
#circle{
width:200px;
height:200px;
border-radius:100px;
background-color:red;
}
</style>
</head>
<body>
<div id="circle"></div>
</body>
simple and novice :)
Here's a circle that I used for a CS 1.6 stats website.
A beautiful four colors circle.
#circle {
border-top: 8px ridge #d11967;
border-right: 8px ridge #d32997;
border-bottom: 8px ridge #5246eb;
border-left: 8px ridge #fc2938;
border-radius: 50%; width: 440px; height: 440px;
}
<div id="circle"></div>
Adjust the circle diameter by chaging the width and height.
You can also rotate and skew by using skewY(), skewX() and rotate():
transform: rotate(60deg);
transform: skewY(-5deg);
transform: skewX(-15deg);
<div class="at-counter-box-content">
<div class="at-counter-content">
<span>40%</span>
</div><!--at-counter-content-->
</div><!--at-counter-box-content-->
If you're using sass to write your CSS you can do:
#mixin draw_circle($radius){
width: $radius*2;
height: $radius*2;
-webkit-border-radius: $radius;
-moz-border-radius: $radius;
border-radius: $radius;
}
.my-circle {
#include draw_circle(25px);
background-color: red;
}
Which outputs:
.my-circle {
width: 50px;
height: 50px;
-webkit-border-radius: 25px;
-moz-border-radius: 25px;
border-radius: 25px;
background-color: red;
}
Try it here: https://www.sassmeister.com/
No width and height requirement (specify just whichever you prefer)
No SVG, canvas or Unicode
.circle {
background: green;
border-radius: 50%;
width: 1rem;
aspect-ratio: 1/1;
}
<div class="circle"></div>
Borwser support:
Chrome/Edge 88+
Firefox 83+ behind a flag

How to make a circular button out of a PNG image?

I'm building a website with a lot of images. The concept is of a galaxy so you can imagine I have a number of round planets and I want to make them clickable buttons.
These planets are in PNG format with transparent background and I want the clickable area to only be the non-transparent area (which is the shape of a circle). However, I have not found a possible solution to do this.
I have also tried to put a transparent circle on top of the image, and put <a href> on the transparent circle instead of on the image, but this does not seem to work either.
What makes it worse is that I have overlapping images which might cause some of the solutions I found not working. For example I have two or three overlapping images and I want them all to be a button (linking to different pages) (and I have another image in its background) so I don't know what's going to happen if I click at the intersection of these buttons.
Some of the solutions I've tried are:
http://jsfiddle.net/josedvq/Jyjjx/45/
http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_areamap
http://jsfiddle.net/DsW9h/
http://bryanhadaway.com/how-to-create-circles-with-css/
A snippet of my code:
HTML
<div>
<a href="~/SomePage">
<img draggable="false" class="AIcon" src="~/Content/Aicon.png" id="AI">
</a>
</div>
CSS
.AIcon{
position:absolute; left: 50%; top: 40%; width: 2.5%; height:5%; opacity: 1;
-webkit-animation: AAAIcon .5s linear 0s 1 normal forwards running;
}
#-webkit-keyframes AAAIcon {
0% {left: 50%; top: 40%; width: 2.5%; height:5%; opacity: 0; z-index:4;}
100% {left: 78%; top: 20%; width: 32%; height:32%; opacity: 1; z-index:4;}
}
As it is now the image is clickable within the whole square of the image, including the transparent area, but not all of the area is clickable (there are some patches in the image where it's just not clickable).
This is driving me nuts. Any pointers would be extremely helpful.
You have three ways to do it:
1- In the following snippet, I have used a css circle inside an image div on the first moon.
2- Alternatively, got the same result on the second moon placing the circle on div:after.
3- A third method is simply the opposite of the second: create a transparent circle and let the moon image on :after.
The first and third methods allow you to use the moon as a link with onclick javascript mouse event. The red element is set with pointer-events: none; so it have no effect on the moons' hovers.
body {
margin:0px;
background: black;
overflow: hidden;
}
#circle1 {
width: 200px;
height: 200px;
background: purple;
-moz-border-radius: 100px;
-webkit-border-radius: 100px;
border-radius: 100px;
cursor: pointer;
opacity: 0.2;
}
#image1 {
display: inline-block;
width: 200px;
height: 200px;
position: relative;
background: url('http://i.imgur.com/YAWvTuu.png');
background-repeat: no-repeat;
background-size: 100% 100%;
}
#image2 {
display: inline-block;
width: 200px;
height: 200px;
position: relative;
background: url('http://i.imgur.com/YAWvTuu.png');
background-repeat: no-repeat;
background-size: 100% 100%;
}
#image2:after {
content:"";
display: inline-block;
width: 200px;
height: 200px;
background: orange;
-moz-border-radius: 100px;
-webkit-border-radius: 100px;
border-radius: 100px;
cursor: pointer;
opacity: 0.2;
}
#inactive {
background: tomato;
position:absolute;
top:50px;
left: 50px;
height:50px;
width: 400px;
pointer-events: none;
opacity: 0.9;
}
#third {
position:absolute;
display: inline-block;
width: 200px;
height: 200px;
background: transparent;
-moz-border-radius: 100px;
-webkit-border-radius: 100px;
border-radius: 100px;
cursor: pointer;
}
#third::after {
content: url('http://i.imgur.com/YAWvTuu.png');
cursor: auto;
pointer-events: none;
}
<div id="image1" alt=image><div id="circle1" onClick="window.location.href = 'http://www.google.com'"></div></div>
<div id="image2" alt=image></div><div id=third class="circle" alt=image onClick="window.location.href = 'http://www.google.com'"></div>
<div id=inactive></div>
I'm not sure if I've interpreted your question properly, but look into z-index. If there's elements overlapping each other, this will be a reason why they're not able to be clicked.
So, you can wrap the planet or circle in an <a> tag, border-radius that <a> element to be 100% which makes it a full circle and then hide the overflow.
See this: https://jsfiddle.net/xcqy7r14/2/
Markup:
<a href="#">
<canvas></canvas>
</a>
<br><br>
<a href="#">
<canvas></canvas>
</a>
CSS:
a {
border-radius: 100%;
overflow: hidden;
display: inline-block;
}
canvas {
width: 100px;
height: 100px;
display: inline-block;
background: #f00;
border-radius: 100%;
}

Responsive diamond grid

I have a selection of squares (squares turned 45° to look like diamonds) which I want to use to make up a big diamond shape with a central red diamond.
I am having issues organising the diamonds themselves and the href seems to fail.
How do I position the responsive diamonds in a regular grid?
Her is my code:
body {
background: black;
color: #000000;
font: 13px georgia, serif;
line-height: 1.4;
font-weight: lighter;
text-rendering: optimizelegibility;
}
#diamond {
width: 0;
height: 0;
border: 50px solid transparent;
border-bottom-color: white;
position: relative;
top: -50px;
}
#diamond:after {
content: '';
position: absolute;
left: -50px;
top: 50px;
width: 0;
height: 0;
border: 50px solid transparent;
border-top-color: white;
}
#diamond_red {
width: 0;
height: 0;
border: 50px solid transparent;
border-bottom-color: #AA1C08;
position: relative;
top: -50px;
}
#diamond_red:after {
content: '';
position: absolute;
left: -50px;
top: 50px;
width: 0;
height: 0;
border: 50px solid transparent;
border-top-color: #AA1C08;
}
<a class="navigation">
<center>
<div id="diamond"></div>
<div id="diamond"></div>
<div id="diamond" href="/photos/"></div>
<div id="diamond_red"></div>
<div id="diamond" href="/projects/"></div>
<div id="diamond"></div>
<div id="diamond"></div>
<div id="diamond" href="/archive/"></div>
</center>
</a>
The responsive grid of diamons:
I don't think you have the right aproach to achieve a regular responsive diamond grid layout. It would be much simpler to:
create a responsive grid of squares (3x3 or whatever grid you feel like)
then rotate the grid 45 degrees.
That way you won't have to fiddle with borders, pseudo elements (:after, :before) and positioning each diamond.
Here is a responsive example
It uses percentage width and padding-bottom to keep the diamonds responsive and transform:rotate(45deg); to rotate te whole grid and make it look like a diamond grid:
body{background:#000;}
#big_diamond {
width: 50%;
margin:15% auto;
overflow:hidden;
transform: rotate(45deg);
}
.diamond {
position: relative;
float: left;
width: 31.33%;
padding-bottom: 31.33%;
margin: 1%;
background: #fff;
transition:background-color .4s;
}
.diamond a {
position: absolute;
top: 0; left: 0;
width: 100%; height: 100%;
}
#red{background-color: #AA1C08;}
.diamond:hover, #red:hover{background-color:darkorange;}
<div id="big_diamond">
<div class="diamond"></div>
<div class="diamond"></div>
<div class="diamond"></div>
<div class="diamond"></div>
<div class="diamond" id="red"></div>
<div class="diamond"></div>
<div class="diamond"></div>
<div class="diamond"></div>
<div class="diamond"></div>
</div>
As other people have mentioned, there are some errors in your HTML that I corrected like: Ids need to be unique and href can't be used on divs.
You're going to need to be more specific / clear on your first question.
First of all, you are using the ID 'diamond' many times. IDs are meant to be unique and used for one element. You should be using classes for this, not IDs.
Second, you can't use href within div tags. You could wrap the divs in a tags like this:
<div class="diamond"></div>
Or, even better so that the whole shape is clickable you can put the a inside of the div and make the a a block level element that is 100% width and height like this:
<div class="diamond"></div>
div a{
width: 100%;
height: 100%;
display: block;
}
JSFiddle Example: http://jsfiddle.net/kQj24/1/
This html has fallback for browsers that don't support transform in that the diamond becomes a square. Also the <div> elements can be wrapped in <a> tags using this method without altering any existing css rules for a. If transform isn't supported the text inside the square class doesn't rotate either.
<center>
<div class="diamond">
<div class="row">
<div class="square"><p>Text</p></div>
<div class="square"></div>
<div class="square"><p>Text</p></div>
</div>
<div class="row">
<div class="square"><p>Text</p></div>
<div class="square red"><p>Text</p></div>
<div class="square"><p>Text</p></div>
</div>
<div class="row">
<div class="square"><p>More</p></div>
<div class="square"></div>
<div class="square"><p>Text</p></div>
</div>
</div>
</center>
CSS, using your existing body rule:
.diamond {
padding-top: 50px;
transform:rotate(45deg);
-ms-transform:rotate(45deg);
-webkit-transform:rotate(45deg);
}
.square {
background-color: white;
display: inline-block;
height: 50px;
overflow: hidden;
width: 50px;
}
.square:hover {
background-color: green;
}
.square p {
transform:rotate(-45deg);
-ms-transform:rotate(-45deg);
-webkit-transform:rotate(-45deg);
}
.red {
background-color: red;
}
http://jsfiddle.net/5Q8qE/8/

Overlaying a DIV On Top Of HTML 5 Video

I need to overlay a div ON TOP of a div containing an HTML 5 video. In the example below the overlaying div's id is "video_overlays". See example below:
<div id="video_box">
<div id="video_overlays"></div>
<div>
<video id="player" src="http://video.webmfiles.org/big-buck-bunny_trailer.webm" type="video/webm" onclick="this.play();">Your browser does not support this streaming content.</video>
</div>
</div>
Here is a stripped down example, using as little HTML markup as possible.
The Basics
The overlay is provided by the :before pseudo element on the .content container.
No z-index is required, :before is naturally layered over the video element.
The .content container is position: relative so that the position: absolute overlay is positioned in relation to it.
The overlay is stretched to cover the entire .content div width with left / right / bottom and left set to 0.
The width of the video is controlled by the width of its container with width: 100%
The Demo
.content {
position: relative;
width: 500px;
margin: 0 auto;
padding: 20px;
}
.content video {
width: 100%;
display: block;
}
.content:before {
content: '';
position: absolute;
background: rgba(0, 0, 0, 0.5);
border-radius: 5px;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
<div class="content">
<video id="player" src="https://upload.wikimedia.org/wikipedia/commons/transcoded/1/18/Big_Buck_Bunny_Trailer_1080p.ogv/Big_Buck_Bunny_Trailer_1080p.ogv.360p.vp9.webm" autoplay loop muted></video>
</div>
Here's an example that will center the content within the parent div. This also makes sure the overlay starts at the edge of the video, even when centered.
<div class="outer-container">
<div class="inner-container">
<div class="video-overlay">Bug Buck Bunny - Trailer</div>
<video id="player" src="https://wiki.yoctoproject.org/wiki/images/a/a6/Big-buck-bunny_trailer.webm" controls autoplay loop></video>
</div>
</div>
with css as
.outer-container {
border: 1px dotted black;
width: 100%;
height: 100%;
text-align: center;
}
.inner-container {
border: 1px solid black;
display: inline-block;
position: relative;
}
.video-overlay {
position: absolute;
left: 0px;
top: 0px;
margin: 10px;
padding: 5px 5px;
font-size: 20px;
font-family: Helvetica;
color: #FFF;
background-color: rgba(50, 50, 50, 0.3);
}
video {
width: 100%;
height: 100%;
}
here's the jsfiddle https://jsfiddle.net/dyrepk2x/2/
Hope that helps :)
There you go , i hope this helps
http://jsfiddle.net/kNMnr/
here is the CSS also
#video_box{
float:left;
}
#video_overlays {
position:absolute;
float:left;
width:640px;
min-height:370px;
background-color:#000;
z-index:300000;
}
<div id="video_box">
<div id="video_overlays"></div>
<div>
<video id="player" src="http://video.webmfiles.org/big-buck-bunny_trailer.webm" type="video/webm" onclick="this.play();">Your browser does not support this streaming content.</video>
</div>
</div>
for this you need to just add css like this:
#video_overlays {
position: absolute;
background-color: rgba(0, 0, 0, 0.46);
z-index: 2;
left: 0;
right: 0;
top: 0;
bottom: 0;
}
#video_box{position: relative;}

How to draw circle in html page?

How do you draw a circle using HTML5 and CSS3?
Is it also possible to put text inside?
You can't draw a circle per se. But you can make something identical to a circle.
You'd have to create a rectangle with rounded corners (via border-radius) that are one-half the width/height of the circle you want to make.
#circle {
width: 50px;
height: 50px;
-webkit-border-radius: 25px;
-moz-border-radius: 25px;
border-radius: 25px;
background: red;
}
<div id="circle"></div>
It is quite possible in HTML 5. Your options are: Embedded SVG and <canvas> tag.
To draw circle in embedded SVG:
<svg xmlns="http://www.w3.org/2000/svg">
<circle cx="50" cy="50" r="50" fill="red" />
</svg>
Circle in <canvas>:
var canvas = document.getElementById("circlecanvas");
var context = canvas.getContext("2d");
context.arc(50, 50, 50, 0, Math.PI * 2, false);
context.fillStyle = "red";
context.fill()
<canvas id="circlecanvas" width="100" height="100"></canvas>
There are a few unicode circles you could use:
* { font-size: 50px; }
○
◌
◍
◎
●
More shapes here.
You can overlay text on the circles if you want to:
#container {
position: relative;
}
#circle {
font-size: 50px;
color: #58f;
}
#text {
z-index: 1;
position: absolute;
top: 21px;
left: 11px;
}
<div id="container">
<div id="circle">●</div>
<div id="text">a</div>
</div>
You could also use a custom font (like this one) if you want to have a higher chance of it looking the same on different systems since not all computers/browsers have the same fonts installed.
border-radius:50% if you want the circle to adjust to whatever dimensions the container gets (e.g. if the text is variable length)
Don't forget the -moz- and -webkit- prefixes! (prefixing no longer needed)
div{
border-radius: 50%;
display: inline-block;
background: lightgreen;
}
.a{
padding: 50px;
}
.b{
width: 100px;
height: 100px;
}
<div class='a'></div>
<div class='b'></div>
As of 2015, you can make it and center the text with as few as 15 lines of CSS (Fiddle):
body {
background-color: #fff;
}
#circle {
position: relative;
background-color: #09f;
margin: 20px auto;
width: 400px;
height: 400px;
border-radius: 200px;
}
#text {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
color: #fff;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>circle with text</title>
</head>
<body>
<div id="circle">
<div id="text">Text in the circle</div>
</div>
</body>
</html>
Without any -webkit-s, this works on IE11, Firefox, Chrome and Opera, and it is valid HTML5 (experimental) and CSS3.
Same on MS Edge (2020).
.circle{
height: 65px;
width: 65px;
border-radius: 50%;
border:1px solid red;
line-height: 65px;
text-align: center;
}
<div class="circle"><span>text</span></div>
border-radius: 50%; will turn all elements into a circle, regardless of size. At least, as long as the height and width of the target are the same, otherwise it will turn into an oval.
#target{
width: 100px;
height: 100px;
background-color: #aaa;
border-radius: 50%;
}
<div id="target"></div>
Note: browser prefixes are not needed anymore for border-radius
Alternatively, you can use clip-path: circle(); to turn an element into a circle as well. Even if the element has a greater width than height (or the other way around), it will still become a circle, and not an oval.
#target{
width: 200px;
height: 100px;
background-color: #aaa;
clip-path: circle();
}
<div id="target"></div>
Note: clip-path is not (yet) supported by all browsers
You can place text inside of the circle, simply by writing the text inside of the tags of the target, like so:
<div>text</div>
If you want to center text in the circle, you can do the following:
#target{
width: 100px;
height: 100px;
background-color: #aaa;
border-radius: 50%;
display: flex;
align-items: center;
}
#text{
width: 100%;
text-align: center;
}
<div id="target">
<div id="text">text</div>
</div>
You can use the border-radius attribute to give it a border-radius equivalent to the element's border-radius. For example:
<div style="border-radius 10px; -moz-border-radius 10px; -webkit-border-radius 10px; width: 20px; height: 20px; background: red; border: solid black 1px;"> </div>
(The reason for using the -moz and -webkit extensions is to support pre-CSS3-final versions of Gecko and Webkit.)
There are more examples on this page. As far as inserting text, you can do it but you have to be mindful of the positioning, as most browsers' box padding model still uses the outer square.
There is not technically a way to draw a circle with HTML (there isn’t a <circle> HTML tag), but a circle can be drawn.
The best way to draw one is to add border-radius: 50% to a tag such as div. Here’s an example:
<div style="width: 50px; height: 50px; border-radius: 50%;">You can put text in here.....</div>
You can use border-radius property, or make a div with fixed height and width and a background with png circle.
h1 {
border: dashed 2px blue;
width: 200px;
height: 200px;
border-radius: 100px;
text-align: center;
line-height: 60px;
}
<h1> <br>hello world</h1>
The followings are my 9 solutions. Feel free to insert text into the divs or svg elements.
border-radius
clip-path
html entity
pseudo element
radial-gradient
svg circle & path
canvas arc()
img tag
pre tag
var c = document.getElementById('myCanvas');
var ctx = c.getContext('2d');
ctx.beginPath();
ctx.arc(50, 50, 50, 0, 2 * Math.PI);
ctx.fillStyle = '#B90136';
ctx.fill();
#circle1 {
background-color: #B90136;
width: 100px;
height: 100px;
border-radius: 50px;
}
#circle2 {
background-color: #B90136;
width: 100px;
height: 100px;
clip-path: circle();
}
#circle3 {
color: #B90136;
font-size: 100px;
line-height: 100px;
}
#circle4::before {
content: "";
display: block;
width: 100px;
height: 100px;
border-radius: 50px;
background-color: #B90136;
}
#circle5 {
background-image: radial-gradient(#B90136 70%, transparent 30%);
height: 100px;
width: 100px;
}
<h3>1 border-radius</h3>
<div id="circle1"></div>
<hr/>
<h3>2 clip-path</h3>
<div id="circle2"></div>
<hr/>
<h3>3 html entity</h3>
<div id="circle3">⬤</div>
<hr/>
<h3>4 pseudo element</h3>
<div id="circle4"></div>
<hr/>
<h3>5 radial-gradient</h3>
<div id="circle5"></div>
<hr/>
<h3>6 svg circle & path</h3>
<svg width="100" height="100">
<circle cx="50" cy="50" r="50" fill="#B90136" />
</svg>
<hr/>
<h3>7 canvas arc()</h3>
<canvas id="myCanvas" width="100" height="100"></canvas>
<hr/>
<h3>8 img tag</h3>
<img src="circle.png" width="100" height="100" />
<hr/>
<h3>9 pre tag</h3>
<pre style="line-height:8px;">
+++
+++++
+++++++
+++++++++
+++++++++++
+++++++++++
+++++++++++
+++++++++
+++++++
+++++
+++
</pre>
Simply do the following in the script tags:
<!Doctype html>
<html>
<head>
<title>Circle Canvas</title>
</head>
<body>
<canvas id="myCanvas" width="300" height="150" style="border:1px solid
#d3d3d3;">
<body>
<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.beginPath();
ctx.arc(100, 75, 50, 0, 2 * Math.PI);
ctx.stroke();
</script>
</body>
</body>
</html>
And there you go you got your circle.
.at-counter-box {
border: 2px solid #1ac6ff;
width: 150px;
height: 150px;
border-radius: 100px;
font-family: 'Oswald Sans', sans-serif;
color:#000;
}
.at-counter-box-content {
position: relative;
}
.at-counter-content span {
font-size: 40px;
font-weight: bold ;
text-align: center;
position: relative;
top: 55px;
}
<head>
<style>
#circle{
width:200px;
height:200px;
border-radius:100px;
background-color:red;
}
</style>
</head>
<body>
<div id="circle"></div>
</body>
simple and novice :)
Here's a circle that I used for a CS 1.6 stats website.
A beautiful four colors circle.
#circle {
border-top: 8px ridge #d11967;
border-right: 8px ridge #d32997;
border-bottom: 8px ridge #5246eb;
border-left: 8px ridge #fc2938;
border-radius: 50%; width: 440px; height: 440px;
}
<div id="circle"></div>
Adjust the circle diameter by chaging the width and height.
You can also rotate and skew by using skewY(), skewX() and rotate():
transform: rotate(60deg);
transform: skewY(-5deg);
transform: skewX(-15deg);
<div class="at-counter-box-content">
<div class="at-counter-content">
<span>40%</span>
</div><!--at-counter-content-->
</div><!--at-counter-box-content-->
If you're using sass to write your CSS you can do:
#mixin draw_circle($radius){
width: $radius*2;
height: $radius*2;
-webkit-border-radius: $radius;
-moz-border-radius: $radius;
border-radius: $radius;
}
.my-circle {
#include draw_circle(25px);
background-color: red;
}
Which outputs:
.my-circle {
width: 50px;
height: 50px;
-webkit-border-radius: 25px;
-moz-border-radius: 25px;
border-radius: 25px;
background-color: red;
}
Try it here: https://www.sassmeister.com/
No width and height requirement (specify just whichever you prefer)
No SVG, canvas or Unicode
.circle {
background: green;
border-radius: 50%;
width: 1rem;
aspect-ratio: 1/1;
}
<div class="circle"></div>
Borwser support:
Chrome/Edge 88+
Firefox 83+ behind a flag