Percent Pie Chart with CSS Only
Creating static, pie-shaped elements solely using CSS requires an understanding of specific CSS properties.
Element #2 Creation
To create element #2, which represents a specific percentage, use the CSS property conic-gradient. This property creates a cone-shaped gradient, with the vertex positioned at the center of the parent element. The angle of the cone is determined by the percentage value, with 100% representing a full circle.
Percentage Value Management
To manage the shape of element #2 for varying percentages, utilize a combination of CSS properties:
- conic-gradient: Adjust the angle of the cone to match the percentage.
- clip-path: Use a circular clip-path to limit the visible area of the conic-gradient. This ensures that the shape appears correctly for both small and large percentages.
Animation
To animate the pie chart, employ the animation property and define a from state that sets the percentage to 0. By gradually increasing the percentage value, the pie chart will fill up incrementally.
Rounded Edges
To achieve rounded edges, use radial-gradient with two color stops. The first stop at 98% creates a subtle highlight, while the second stop at 100% uses #0000 to create a sharp boundary. A mask or -webkit-mask is applied to selectively hide portions of the gradient.
Sample Code
.pie {
--p: 20;
--b: 22px;
--c: darkred;
--w: 150px;
width: var(--w);
aspect-ratio: 1/1;
position: relative;
display: inline-grid;
margin: 5px;
place-content: center;
font-size: 25px;
font-weight: bold;
font-family: sans-serif;
}
.pie:before {
content: "";
position: absolute;
border-radius: 50%;
background:
radial-gradient(farthest-side, var(--c) 98%, #0000) top/var(--b) var(--b) no-repeat,
conic-gradient(var(--c) calc(var(--p)*1%), #0000 0);
mask: radial-gradient(farthest-side, #0000 calc(99% - var(--b)), #000 calc(100% - var(--b)));
}
.pie:after {
inset: calc(50% - var(--b)/2);
background: var(--c);
transform: rotate(calc(var(--p)*3.6deg - 90deg)) translate(calc(var(--w)/2 - 50%));
}The above is the detailed content of How Can I Create a Percentage Pie Chart Using Only CSS?. For more information, please follow other related articles on the PHP Chinese website!
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