Segments in a circle using CSS3 - css

Question

I know you can make a circle in CSS3 using the border radius hack. But is there any way to make them have segments like this picture? Is there a way of doing this through HTML and CSS but not JS?

Answer 1

Yes, you can get such slices of custom angles using either one of the following two methods:
If you don't need the slices to be elements themselves, the you can simply do it with one element and linear gradients - see this rainbow wheel I did last month.
If you need the slices to be elements themselves, then you can do it by chaining rotate and skew transforms - see this circular menu I did a while ago.
For #2, see also this very much simplified example I did right now.
.pie {
overflow:hidden;
position: relative;
margin: 1em auto;
border: dashed 1px;
padding: 0;
width: 32em; height: 32em;
border-radius: 50%;
list-style: none;
}
.slice {
overflow: hidden;
position: absolute;
top: 0; right: 0;
width: 50%; height: 50%;
transform-origin: 0% 100%;
}
.slice:first-child {
transform: rotate(15deg) skewY(-22.5deg);
}
.slice-contents {
position: absolute;
left: -100%;
width: 200%; height: 200%;
border-radius: 50%;
background: lightblue;
}
.slice:first-child .slice-contents {
transform: skewY(22.5deg); /* unskew slice contents */
}
.slice:hover .slice-contents { background: violet; } /* highlight on hover */
<ul class='pie'>
<li class='slice'>
<div class='slice-contents'></div>
</li>
<!-- you can add more slices here -->
</ul>

Answer 2

Yes you can: http://jsfiddle.net/elias94xx/3rx7w/, http://jsfiddle.net/elias94xx/3rx7w/2/
#chart {
width: 0;
height: 0;
border-right: 60px solid purple;
border-top: 60px solid transparent;
border-left: 60px solid transparent;
border-bottom: 60px solid transparent;
border-radius: 60px;
-moz-border-radius: 60px;
-webkit-border-radius: 60px;
}
<div id="chart"></div>
.chart {
position: absolute;
width: 0;
height: 0;
border-radius: 60px;
-moz-border-radius: 60px;
-webkit-border-radius: 60px;
}
#chart1 {
border-right: 60px solid red;
border-top: 60px solid transparent;
border-left: 60px solid transparent;
border-bottom: 60px solid transparent;
}
#chart2 {
border-right: 60px solid transparent;
border-top: 60px solid green;
border-left: 60px solid transparent;
border-bottom: 60px solid transparent;
}
#chart3 {
border-right: 60px solid transparent;
border-top: 60px solid transparent;
border-left: 60px solid blue;
border-bottom: 60px solid transparent;
}
#chart4 {
border-right: 60px solid transparent;
border-top: 60px solid transparent;
border-left: 60px solid transparent;
border-bottom: 60px solid yellow;
}
<div id="chart1" class="chart"></div>
<div id="chart2" class="chart"></div>
<div id="chart3" class="chart"></div>
<div id="chart4" class="chart"></div>
Source: http://www.paulund.co.uk/how-to-create-different-shapes-in-css

Answer 3

You can use html li element and some css transform to represent each slice of the circle.
The tricky part is the transform. In this case I've divided the circle into 5 slices.
The calculation is the following.
360/5=72 -> rotate
72+90=162 -> skewY
.sliceWrapper {
position: relative;
border: 1px solid black;
padding: 0;
width: 200px;
height: 200px;
border-radius: 50%;
list-style: none;
overflow: hidden;
}
.slice {
position: absolute;
left: -100%;
width: 200%;
height: 200%;
}
li {
overflow: hidden;
position: absolute;
top: -50%;
right: -50%;
width: 100%;
height: 100%;
transform-origin: 0% 100%;
}
li:first-child {
transform: rotate(0deg) skewY(162deg);
}
li:nth-child(2) {
transform: rotate(72deg) skewY(162deg);
}
li:nth-child(3) {
transform: rotate(144deg) skewY(162deg);
}
li:nth-child(4) {
transform: rotate(216deg) skewY(162deg);
}
li:nth-child(5) {
transform: rotate(288deg) skewY(162deg);
}
li:first-child .slice {
background: green;
}
li:nth-child(2) .slice {
background: tomato;
}
li:nth-child(3) .slice {
background: aqua;
}
li:nth-child(4) .slice {
background: yellow;
}
li:nth-child(5) .slice {
background: blue;
}
<ul class="sliceWrapper">
<li>
<div class="slice"></div>
</li>
<li>
<div class="slice"></div>
</li>
<li>
<div class="slice"></div>
</li>
<li>
<div class="slice"></div>
</li>
<li>
<div class="slice"></div>
</li>
</ul>

Answer 4

You can use a conic gradient
Conic gradients basically go around the shape, like a circle, from 0° to 360°.
Here is a basic conic gradient, with a circle:
div {
width: 500px;
height: 500px;
border-radius: 9999px;
background: red; /* fallback */
background: conic-gradient(red, orange, yellow, green, blue, purple);
}
<div></div>
Using color stops, we can then, magically, turn it into segments:
div {
width: 500px;
height: 500px;
border-radius: 9999px;
background: red; /* fallback */
background: conic-gradient(red 10%, orange 10%, orange 30%, yellow 30%, yellow 50%, green 50%, green 60%, blue 60%, blue 70%, purple 70%);
}
<div></div>
Optionally, if we only want one slice, we can now change this so we only have one colour, and now we're good to go :)
div {
width: 500px;
height: 500px;
border-radius: 9999px;
background: red; /* fallback */
background: conic-gradient(#0000 40%, red 40%, red 70%, #0000 70%);
}
<div></div>