CSS circle with inner circle and image - html

I'm trying to achieve the following:
A background circle with a smaller colored circle inside of it, which must be centered
A small centered image inside of both circles
All of these items needs to be placed in a single div
I'm trying to do this with the minimum amount of code. I want to avoid duplication as much as possible. I believe that all of this can be achieved using before and after selectors, but I'm not sure how to get this done
Here's what I have so far:
CSS:
.grid-container {
display: grid;
grid: 100px / 100px;
}
.circle {
border-radius: 50%;
width: 100%;
height: 100%;
background-color: #e4e4e7;
}
.circle:before {
content: "";
border-radius: 50%;
width: 80%;
height: 80%;
top: 10%;
left: 10%;
background-color: blue;
display: block;
position: relative;
}
.image-one:before {
content: url("https://stackoverflow.com/favicon.ico");
}
.circle-01 {
grid-column: 1 / 2;
grid-row: 1 / 2;
}
HTML:
<div class="grid-container">
<div class="circle-01 circle image-one"></div>
</div>
I need a structure whereby I can easily change the color of the inner circle and/or image
Example
<div class="grid-container">
<div class="circle-01 circle image-one yellow"></div>
<div class="circle-01 circle image-two blue"></div>
<div class="circle-01 circle image-three green"></div>
</div>

You can do it with a pseudo element like this, putting the pseudo element on top of the main element and using borders and a background-image. You can even use a background color behind the image if it doesn't fill the whole pseudo element (note the no-repeat, the size and position settings for the background):
.x1 {
width: 300px;
height: 300px;
position: relative;
border-radius: 50%;
border: 10px solid #22f;
margin: 30px;
background: yellow;
}
.x1:after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 220px;
height: 220px;
border-radius: 50%;
border: 6px solid #f22;
background: #3d3 url(http://placehold.it/200x200/fa0/?text=this_is_an_image) center center no-repeat;
background-size: 100px 100px;
}
<div class="x1"></div>
Note: the orange square is an image, the green color around it is the background color, the red circle is the border of the pseudo element, the yellow area is the background color of the main element and the blue circle is the border of the main element. Each of these could as well be white or transparent.
ADDITION after additional question in comment:
You can also change the background-colors by adding seperate classes. In the following snippet I added two classes to the div, one that affects the background in the main element and one that affects the background-color of the pseudo element. In the latter case you have to make sure to use the background-color property, not background in the CSS rule - otherwise the background-image would disappear:
.x1 {
width: 300px;
height: 300px;
position: relative;
border-radius: 50%;
border: 10px solid #22f;
margin: 30px;
background: yellow;
}
.x1:after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 220px;
height: 220px;
border-radius: 50%;
border: 6px solid #f22;
background: #3d3 url(http://placehold.it/200x200/fa0/?text=this_is_an_image) center center no-repeat;
background-size: 100px 100px;
}
.aqua-outer-bg {
background: aqua;
}
.pink-inner-bg:after {
background-color: pink;
}
<div class="x1 aqua-outer-bg pink-inner-bg"></div>
Note: The original CSS rules remained unchanged, their background colors are overwritten by the additional classes.
ONE MORE ADDITION after additional question in comment from OP on September 18th:
Yes, you can also split that in two classes as I did below (.x1a and .x1b). I simply added both classes to the HTML tag and split up the CSS from x1:after into two rules, one for .x1a:after and one for .x2a:after
.x1a {
width: 300px;
height: 300px;
position: relative;
border-radius: 50%;
border: 10px solid #22f;
margin: 30px;
background: yellow;
}
.x1a:after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 220px;
height: 220px;
background: #3d3 url(http://placehold.it/200x200/fa0/?text=this_is_an_image) center center no-repeat;
background-size: 100px 100px;
}
.x1b:after {
border-radius: 50%;
border: 6px solid #f22;
}
.aqua-outer-bg {
background: aqua;
}
.pink-inner-bg:after {
background-color: pink;
}
<div class="x1a x1b aqua-outer-bg pink-inner-bg"></div>

Try running this snippet:
$(document).ready(function() {
var sourceIndex = 1;
var colorIndex = 1;
var colors = [
"rgb(0, 132, 203)",
"rgb(255, 192, 203)",
"rgb(50, 192, 103)",
"rgb(255, 165, 0)"
];
var sources = [
"https://www.linkedin.com/favicon.ico",
"https://www.google.com/favicon.ico",
"http://jsfiddle.net/favicon.ico",
"https://getbootstrap.com/favicon.ico",
"https://www.facebook.com/favicon.ico"
];
$("button").click(function() {
changeStuff($(this).hasClass("changeImage") ? sources : colors, $(this));
function changeStuff(list, selector) {
counter(list, selector);
if (list == sources) {
selector
.prev()
.prev(".outer-circle")
.find(".inner-circle")
.find("img")
.attr("src", list[sourceIndex]);
} else {
if (
selector
.prev(".outer-circle")
.find(".inner-circle")
.css("background-color") == colors[colorIndex]
) {
selector
.prev(".outer-circle")
.find(".inner-circle")
.css("background-color", "tan");
} else {
selector
.prev(".outer-circle")
.find(".inner-circle")
.css("background-color", colors[colorIndex]);
}
}
}
});
function counter(list, selector) {
if (list == sources) {
sourceIndex == list.length - 1 ? (sourceIndex = 0) : sourceIndex++;
} else {
colorIndex == list.length - 1 ? (colorIndex = 0) : colorIndex++;
}
}
});
.container {
display: flex;
align-items: center;
flex-direction: column;
}
.box {
display: flex;
}
.inner-circle {
border-radius: 50%;
width: 80%;
height: 80%;
display: flex;
align-items: center;
justify-content: center;
}
.box:first-child .inner-circle {
background-color: blue;
}
.box:nth-child(2) .inner-circle {
background-color: black;
}
.box:nth-child(3) .inner-circle {
background-color: maroon;
}
.outer-circle {
border-radius: 50%;
width: 100px;
height: 100px;
background-color: #e4e4e7;
display: flex;
justify-content: center;
align-items: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container">
<div class="box">
<div class="outer-circle">
<div class="inner-circle">
<img src="https://stackoverflow.com/favicon.ico" alt="">
</div>
</div>
<button class='changeColor'>Change Color</button>
<button class='changeImage'>Change Image</button>
</div>
<div class="box">
<div class="outer-circle">
<div class="inner-circle">
<img src="https://stackoverflow.com/favicon.ico" alt="">
</div>
</div>
<button class='changeColor'>Change Color</button>
<button class='changeImage'>Change Image</button>
</div>
<div class="box">
<div class="outer-circle">
<div class="inner-circle">
<img src="https://stackoverflow.com/favicon.ico" alt="">
</div>
</div>
<button class='changeColor'>Change Color</button>
<button class='changeImage'>Change Image</button>
</div>
</div>

Abracadabra
div {
border-radius: 50%
}
#a {
display: flex;
justify-content: center;
align-items: center;
height: 64px;
width: 64px;
border: 2px solid green;
}
img {
align-self: auto;
border: 2px solid blue;
border-radius: 50%;
padding:5%;
}
<div id="a">
<img src="https://rack.pub/media/janus.png" height="48">
</div>

Related

Issue with z-index and transformations

This has been asked before but none of the answers seem to be working for me.
My issue is related to a lost z-index when a transformation is applied.
I have an overlay div with a defined z-index, it has a sibling with no z-index and this div contains a child with a z-index greater than the overlay. This child can be dragged around.
At some point I rotate this sibling and it's child loses the z-index.
How can I prevent this from happening?
I tried several solutions attemps like transform-style: flat; or transform-style: preserve-3d; but with no luck
This is the code
HTML
<div class="main">
<div class="some_container">
<div class="drag"></div>
</div>
</div>
<div class="overlay"></div>
<br><br><br>
<button>rotate!</button>
CSS
body {
padding: 20px
}
div {
border: 1px solid black;
width: 50px;
height: 50px;
}
.main {
border: 1px dashed blue;
padding: 15px;
}
.some_container {
position: relative;
background-color: green;
}
.overlay {
background-color: red;
position: absolute;
left: 35px;
top: 35px;
z-index: 5
}
.drag {
position: relative;
width: 30px;
height: 30px;
background-color: lime;
z-index: 10;
cursor: move;
}
.rotated {
transform: rotateZ(15deg);
}
.rotated .drag {
background-color: yellow;
transform: rotateZ(-15deg);
position: relative;
z-index: 100;
transform-style: flat;
}
JS
$(".drag").draggable();
$("button").click(function()
{
$(".some_container").addClass("rotated");
});
fiddle: https://jsfiddle.net/2zkn9dap/
The transform that you have in your .rotated class creates a new stacking context that is changing the order that the elements are layered. A great explanation with more detail can be found here: z-index is canceled by setting transform(rotate)
The best approach to solving this is to move the .drag div to be a sibling of the .overlay and .some_container div. Then update your JS to add the rotated class to the green and yellow squares so they are both rotated. Otherwise, you'll never be able to get the yellow square on top of the red one consistently, because the z-index of the parent, in this case the .some_container div takes precedence.
$("button").click(function(){
$(".green").addClass("rotated")
$(".lime").addClass("rotated").css({backgroundColor: 'yellow'});
});
body {
padding: 20px
}
div {
border: 1px solid black;
width: 50px;
height: 50px;
}
.container {
border: 1px dashed blue;
padding: 15px;
}
.green {
position: absolute;
background-color: green;
z-index: 2;
}
.red {
background-color: red;
position: absolute;
left: 35px;
top: 35px;
z-index: 3;
}
.lime {
position: absolute;
width: 30px;
height: 30px;
background-color: lime;
z-index: 4;
cursor: move;
}
.rotated {
transform: rotateZ(15deg);
}
<div class="container">
<div class="green">
</div>
<div class="lime"></div>
</div>
<div class="red"></div>
<br><br><br>
<button>rotate!</button>
<script src="http://code.jquery.com/jquery-3.3.1.js"></script>
Change the position: relative to absolute of .lime.
If you don't want to rotate the '.lime' div, then remove `.addClass("rotated") on the 4th line of the script.

Cannot set overflow-x visible and overflow-y auto

First of all, I know this question has been asked before. But I couldn't find the right solution for my case. That is why, I am posting it again.
So I am having a side bar
<div className="LeftMenu">
<div style={{position:relative"}}>
<div className= "icon-Back-office-icons_Logout1"}/>
<span className="tooltiptext">Name 1</span>
</div>
<div style={{position:relative"}}>
<div className= "icon-Back-office-icons_Logout2"}/>
<span className="tooltiptext">Name2</span>
</div>
</div>
.LeftMenu {
background-color: white; // box-shadow: 1px 2px 9px 0 rgba(92, 131, 205, 0.06);
display: flex;
align-items: center;
flex-direction: column;
padding-top: 24px;
padding-bottom: 25px;
height: 100%;
z-index: 100;
width: 100px;
position: fixed;
overflow-x: visible;
overflow-y:auto;
}
.tooltiptext:hover {
width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
position: absolute;
z-index: 1;
top: -5px;
left: 110%;
}
.tooltiptext::after {
content: "";
position: absolute;
top: 50%;
right: 100%;
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent black transparent transparent;
}
The leftmenu div contains many children div. On hovering each child element a tool tip is displayed. A vertical scroll must be displayed if the length of children div increases. Hence I have given overflow-y auto. But the tooltip must be visible, and it has to overflow the leftmenu. Hence, I am giving overflow-x as visible.
But this doesn't work as I thought.
https://jsfiddle.net/jcj7k6kp/ Here is a jsfiddle that demonstrates my issue.
I don't think it's possible with only css. So here is a possible javascript solution (maybe you'll need to tweak some stuff to have px perfect centring ...):
const tooltips = Array.from(document.querySelectorAll('.tooltip'));
function displayTooltip(e) {
let tooltip = e.target;
let title = tooltip.getAttribute('data-title');
let tooltiptext = document.getElementById('tooltiptext');
let rect = tooltip.getBoundingClientRect();
let tooltipMargin = 14;
tooltiptext.innerHTML = title;
tooltiptext.style.top = rect.y + 'px';
tooltiptext.style.left = rect.x + rect.width + tooltipMargin + 'px';
tooltiptext.style.display = 'block';
}
function hideTooltip() {
let tooltiptext = document.getElementById('tooltiptext');
tooltiptext.style.display = 'none';
}
tooltips.forEach(function(t) {
t.addEventListener('mouseover', displayTooltip);
t.addEventListener('mouseout', hideTooltip);
});
.content {
height: 400px;
}
.LeftMenu {
width: 200px;
background-color: white;
box-shadow: 1px 0 0 0 #ebedf8, -6px 0 30px 0 rgba(42, 34, 64, 0.1);
display: flex;
align-items: center;
flex-direction: column;
padding-top: 24px;
padding-bottom: 25px;
position: fixed;
height: 100px;
z-index: 100;
overflow-x: hidden;
overflow-y: auto;
}
/*overflow-x and overflow-y isn't working as expected*/
/*overflow-x must be visible since I need the tooltip to be visible*/
/*overflow-y must be auto since I need to have a fixed height div and content must be scrollable if it doesnt't fit inside the fixed height*/
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
.tooltiptext {
position: absolute;
display: none;
width: 120px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
z-index: 1000;
}
.tooltiptext::after {
content: "";
position: absolute;
top: 50%;
right: 100%;
margin-top: -5px;
border-width: 5px;
border-style: solid;
border-color: transparent black transparent transparent;
}
<div class='tooltiptext' id='tooltiptext'>
</div>
<div class="LeftMenu">
<div class="tooltip" data-title="Tooltip text">
Hover over me
</div>
<div class="tooltip" data-title="Tooltip text 2">
Hover over me 2
</div>
<div class="tooltip" data-title="Tooltip text 3">
Hover over me 3
</div>
<div class="tooltip" data-title="Tooltip text 4">
Hover over me 4
</div>
<div class="tooltip" data-title="Tooltip text 5">
Hover over me 5
</div>
<div class="tooltip" data-title="Tooltip text 6">
Hover over me 6
</div>
<div class="tooltip" data-title="Tooltip text 7">
Hover over me 7
</div>
<div class="tooltip" data-title="Tooltip text 8">
Hover over me 8
</div>
</div>
and a jsfiddle

Hover event taking place outside of area I am wanting

I have a small bug that I can't seem to locate. In my snippet you can see how whenever you hover over the image, opactiy and an image scale takes place, as well as a box comes over the image. That is perfect, but my issue is whenever you hover over the text below it, the hover effect takes place over the image.
I can't seem to figure out how for the hover effect to only take place when the mouse is hovering over the image.
Any suggestions would be appreciated.
$('.home-img-block img').addClass(function() {
return (this.width / this.height > 1) ? 'wide' : 'tall';
});
#home-img-block-section {
width: 100%;
height: 900px;
}
#home-img-blocks {
width: 100%;
height: 750px;
}
.home-img-block {
width: 33.33%;
float: left;
display: block;
overflow: hidden;
position: relative;
}
.home-img-container {
position: relative;
overflow: hidden;
cursor: pointer;
}
.home-img-block:hover .overlay {
background: rgba(0, 0, 0, 0.6);
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
}
.home-img-container:after {
content: attr(data-content);
color: #fff;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
opacity: 0;
transition: all 0.5s;
border: 1px solid #fff;
padding: 20px 25px;
text-align: center;
}
.home-img-container:hover:after {
opacity: 1;
}
.home-img-block img {
display: block;
transition: all 1s ease;
}
.home-img-block:hover img {
transform: scale(1.25);
background: rgba(0, 0, 0, 0.3);
width: 33.33%;
max-height: 100%;
overflow: hidden;
}
.home-img-block img.wide {
max-width: 100%;
max-height: 100%;
height: auto;
width: 100%;
}
.home-img-block img.tall {
max-width: 100%;
max-height: 100%;
width: auto;
}
#home-img-block-wording-container {
width: 100%;
height: 300px;
}
.home-img-wording-blocks {
width: 100%;
height: 100%;
text-align: center;
display: inline-block;
vertical-align: top;
}
.home-img-wording-block-title {
padding-top: 30px;
font-size: 1.7em;
}
.home-img-wording-block-description {
padding: 25px 50px 0 50px;
font-size: 1.1em;
color: #5d5d5d;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="home-img-block-section">
<div id="home-img-blocks">
<div class="home-img-block fadeBlock1">
<div data-content="FIND OUT MORE" class='home-img-container'>
<img src="http://optimumwebdesigns.com/images/test1.jpg">
<div class="overlay"></div>
</div>
<div class="home-img-wording-blocks">
<div class="home-img-wording-block-title">WEB DESIGN</div>
<div class="home-img-wording-block-description">The OD team can see your web design visions brought
to life, creating a site that promotes your uniqueness through specific functionalities and features.</div>
</div>
</div>
<div class="home-img-block fadeBlock2">
<div data-content="FIND OUT MORE" class='home-img-container'>
<img src="http://optimumwebdesigns.com/images/test2new.jpg">
<div class="overlay"></div>
</div>
<div class="home-img-wording-blocks">
<div class="home-img-wording-block-title">ECOMMERCE</div>
<div class="home-img-wording-block-description">Custom built solutions catered towards you end goal.
gfdgfdsg greg reg regrfesg fdsg gretswtgy tgreswt treswt trgegfd gsvbd fbgre greasgv drfdg greaag gredr</div>
</div>
</div>
<div class="home-img-block fadeBlock3">
<div data-content="FIND OUT MORE" class='home-img-container'>
<img src="http://optimumwebdesigns.com/images/test3new.jpg">
<div class="overlay"></div>
</div>
<div class="home-img-wording-blocks">
<div class="home-img-wording-block-title">MARKETING STRATEGIES</div>
<div class="home-img-wording-block-description">MARKETING STRATEGIES gfdgf fdggs gfsg gfsg gf sgf g
gfdsg sdfggfs gfdsgssdfg fdggfds gfdsg gfds gfdgs gf dsgfdsgfgs gfdgfs gtrg resg reg rgesgresrgrg</div>
</div>
</div>
</div>
</div>
.home-img-block:hover .overlay
and
.home-img-block:hover img
replace them with
.home-img-container:hover .overlay
.home-img-container:hover img
otherwise you're triggering when you hover over the whole container instead of only wheen hovering the img one.

How to make in CSS an overlay over an image?

I am trying to achieve something like this:
When I hover over an image, I would like to put on that image this dark color with some text and the icon.
I am stuck here. I found some tutorials but they didn't work out for this case.
Also, another issue -- every image has a different height. The width is always the same.
How can this effect be achieved?
You can achieve this with this simple CSS/HTML:
.image-container {
position: relative;
width: 200px;
height: 300px;
}
.image-container .after {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: none;
color: #FFF;
}
.image-container:hover .after {
display: block;
background: rgba(0, 0, 0, .6);
}
HTML
<div class="image-container">
<img src="http://lorempixel.com/300/200" />
<div class="after">This is some content</div>
</div>
Demo: http://jsfiddle.net/6Mt3Q/
UPD: Here is one nice final demo with some extra stylings.
.image-container {
position: relative;
display: inline-block;
}
.image-container img {display: block;}
.image-container .after {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: none;
color: #FFF;
}
.image-container:hover .after {
display: block;
background: rgba(0, 0, 0, .6);
}
.image-container .after .content {
position: absolute;
bottom: 0;
font-family: Arial;
text-align: center;
width: 100%;
box-sizing: border-box;
padding: 5px;
}
.image-container .after .zoom {
color: #DDD;
font-size: 48px;
position: absolute;
top: 50%;
left: 50%;
margin: -30px 0 0 -19px;
height: 50px;
width: 45px;
cursor: pointer;
}
.image-container .after .zoom:hover {
color: #FFF;
}
<link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css" rel="stylesheet"/>
<div class="image-container">
<img src="http://lorempixel.com/300/180" />
<div class="after">
<span class="content">This is some content. It can be long and span several lines.</span>
<span class="zoom">
<i class="fa fa-search"></i>
</span>
</div>
</div>
You could use a pseudo element for this, and have your image on a hover:
.image {
position: relative;
height: 300px;
width: 300px;
background: url(http://lorempixel.com/300/300);
}
.image:before {
content: "";
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
transition: all 0.8s;
opacity: 0;
background: url(http://lorempixel.com/300/200);
background-size: 100% 100%;
}
.image:hover:before {
opacity: 0.8;
}
<div class="image"></div>
Putting this answer here as it is the top result in Google.
If you want a quick and simple way:
filter: brightness(0.2);
*Not compatible with IE
A bit late for this, but this thread comes up in Google as a top result when searching for an overlay method.
You could simply use a background-blend-mode
.foo {
background-image: url(images/image1.png), url(images/image2.png);
background-color: violet;
background-blend-mode: screen multiply;
}
What this does is it takes the second image, and it blends it with the background colour by using the multiply blend mode, and then it blends the first image with the second image and the background colour by using the screen blend mode. There are 16 different blend modes that you could use to achieve any overlay.
multiply, screen, overlay, darken, lighten, color-dodge, color-burn, hard-light, soft-light, difference, exclusion, hue, saturation, color and luminosity.
.bg-img{
text-align: center;
padding: 130px 0px;
width: 100% !important;
background-size: cover !important;
background-repeat: no-repeat !important;
background: linear-gradient(0deg, rgba(0, 0, 0, 0.86), rgba(0, 0, 0, 0.86)), url(your-img-path);
}

Draw Circle using css alone [duplicate]

This question already has answers here:
How to draw circle in html page?
(19 answers)
Closed 7 years ago.
Is it possible to draw circle using css only which can work on most of the browsers (IE,Mozilla,Safari) ?
Yep, draw a box and give it a border radius that is half the width of the box:
#circle {
background: #f00;
width: 200px;
height: 200px;
border-radius: 50%;
}
Working demo:
http://jsfiddle.net/DsW9h/1/
#circle {
background: #f00;
width: 200px;
height: 200px;
border-radius: 50%;
}
<div id="circle"></div>
You could use a .before with a content with a unicode symbol for a circle (25CF).
.circle:before {
content: ' \25CF';
font-size: 200px;
}
<span class="circle"></span>
I suggest this as border-radius won't work in IE8 and below (I recognize the fact that the suggestion is a bit mental).
Create a div with a set height and width (so, for a circle, use the same height and width), forming a square
add a border-radius of 50% which will make it circular in shape. (note: no prefix has been required for a long time)
You can then play around with background-color / gradients / (even pseudo elements) to create something like this:
.red {
background-color: red;
}
.green {
background-color: green;
}
.blue {
background-color: blue;
}
.yellow {
background-color: yellow;
}
.sphere {
height: 200px;
width: 200px;
border-radius: 50%;
text-align: center;
vertical-align: middle;
font-size: 500%;
position: relative;
box-shadow: inset -10px -10px 100px #000, 10px 10px 20px black, inset 0px 0px 10px black;
display: inline-block;
margin: 5%;
}
.sphere::after {
background-color: rgba(255, 255, 255, 0.3);
content: '';
height: 45%;
width: 12%;
position: absolute;
top: 4%;
left: 15%;
border-radius: 50%;
transform: rotate(40deg);
}
<div class="sphere red"></div>
<div class="sphere green"></div>
<div class="sphere blue"></div>
<div class="sphere yellow"></div>
<div class="sphere"></div>
border radius is good option, if struggling with old IE versions then try HTML codes
•
and use css to change color. Output:
•
This will work in all browsers
#circle {
background: #f00;
width: 200px;
height: 200px;
border-radius: 50%;
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
}
yup.. here's my code:
<style>
.circle{
width: 100px;
height: 100px;
border-radius: 50%;
background-color: blue
}
</style>
<div class="circle">
</div>