How to use pure CSS to achieve the effect of a color card
This article mainly introduces how to use pure CSS to achieve the effect of a color card. It has certain reference value. Now I share it with you. Friends in need can refer to it
Source code download
Please download all the source code of the daily front-end practical series from github:
https://github.com/comehope/front-end- daily-challenges
Code Interpretation
Define dom, the container contains 8 elements:
<p> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> </p>
Centered display:
body {
margin: 0;
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
background-color: lightgray;
}Redefine the box model:
.cards,
.cards > * {
box-sizing: border-box;
}Define the container size:
.cards {
width: 20em;
height: 20em;
}Draw the color card:
.cards span {
position: absolute;
width: 10em;
height: 3em;
background-color: lightgreen;
top: calc(50% - 3em / 2);
border: 0.2em solid dimgray;
border-radius: 0.3em 0.8em 0.8em 0.3em;
}Draw the label of the color card with pseudo elements:
.cards span::before {
content: '';
position: absolute;
width: 35%;
height: 100%;
background-color: white;
right: 0;
border-radius: 0 0.6em 0.6em 0;
border-left: 0.2em solid silver;
}Draw with pseudo elements Text on the color card label:
.cards span::after {
content: '';
position: absolute;
width: 0.4em;
height: 2em;
background-color: silver;
left: 6.5em;
top: 0.1em;
box-shadow: 0.7em 0 0 -0.1em silver;
}Set variables for the color card:
.cards span:nth-child(1) {
--n: 1;
}
.cards span:nth-child(2) {
--n: 2;
}
.cards span:nth-child(3) {
--n: 3;
}
.cards span:nth-child(4) {
--n: 4;
}
.cards span:nth-child(5) {
--n: 5;
}
.cards span:nth-child(6) {
--n: 6;
}
.cards span:nth-child(7) {
--n: 7;
}
.cards span:nth-child(8) {
--n: 8;
}Color the color card with HSL color mode:
.cards span {
background-color: hsl(calc(360 / 8 * var(--n)), 80%, 70%);
}Define animation effects:
.cards span {
transform-origin: right;
animation: rotating 3s linear infinite;
}
@keyframes rotating {
0%, 35% {
transform: rotate(0deg);
}
90%, 100% {
transform: rotate(360deg);
}
}Finally, set the animation delay to let the cards rotate in sequence:
.cards span {
animation-delay: calc((var(--n) - 8) * 0.15s);
}You’re done!
The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:
How to use CSS to achieve a button text sliding effect
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