效果(完整代碼在底部):

實作并不難,都是重復的代碼比較多,
實作(可跟著一步一步寫):
1. 先定義基本標簽:
<!-- 血輪眼 -->
<div class="zuo">
<!-- 眼睛最中間那個黑點 -->
<div class="zuoZong">
<!-- 三勾玉所在的圈 -->
<div class="zuoYu">
<!-- 三個勾玉 -->
<span class="yu"></span>
<span class="yu"></span>
<span class="yu"></span>
</div>
</div>
</div>
<!-- 輪回眼 -->
<div class="you">
<!-- 眼睛最中間那個黑點 -->
<div class="dian"></div>
<!-- 3個輪回圈 -->
<div class="youYu">
<span class="quan" style="--r:2;"></span>
<span class="quan" style="--r:3;"></span>
<span class="quan" style="--r:4;"></span>
</div>
</div>
2. 定義左右眼的基本css樣式:
.zuo , .you{
width: 250px;
height: 120px;
background-color: rgb(255, 255, 255);
border-bottom: 5px solid rgb(70, 70, 70);
overflow: hidden;
position: relative;
}
border-bottom: 5px solid rgb(70, 70, 70); 給個灰色的眼底,
overflow:溢位隱藏,
position: relative; 相對定位,
3. 開始先定義血輪眼的基本樣式:
.zuo{
transform: translateX(-135px);
border-radius: 0 120px 0 120px;
box-shadow: inset 3px 2px 3px rgba(17, 17, 17, 0.8);
}
transform: translateX(-135px); 向左偏移,讓兩眼分開,
border-radius:給兩個角設定弧度,形成眼睛形狀,
bos-shadowL給眼角一點陰影,
4. 設定眼球寬高等:
.zuo::after{
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 95px;
height: 95px;
border-radius: 50%;
border: 2px solid #000;
animation: colour 2s linear forwards;
}
@keyframes colour{
0%,30%{
background-color: rgb(0, 0, 0);
}
100%{
background-color: rgb(255, 4, 4);
}
}
position: absolute; 絕對定位
top: 50%;
left: 50%;
transform: translate(-50%,-50%); 居中對齊,
animation:設定影片,讓其變紅色,forward:繼承最后一幀的屬性,
background-color: rgb(0, 0, 0); 黑色
background-color: rgb(255, 4, 4); 紅色,
5. 設定眼球正中間的黑點,都是些定位大小啥的,然后設定影片然它慢慢變大:
.zuoZong{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 0px;
height: 0px;
border-radius: 50%;
background-color: rgb(0, 0, 0);
z-index: 1;
animation: da 3s linear forwards;
}
@keyframes da{
100%{
width: 15px;
height: 15px;
}
}
6. 設定三勾玉所在的圈,設定影片讓其顯示與旋轉:
.zuoYu{
position: absolute;
top: -25px;
left: -25px;
bottom: -25px;
right: -25px;
border-radius: 50%;
border: 2px solid rgb(0, 0, 0);
animation: zhuan 2s linear 2s forwards;
opacity: 0;
}
@keyframes zhuan{
100%{
opacity: 1;
transform: rotate(720deg);
}
}
position: absolute;
top: -25px;
left: -25px;
bottom: -25px;
right: -25px; 大小,
border-radius: 50%;圓形,
border: 2px solid rgb(0, 0, 0); 黑色邊框,
opacity:0;透明度為0;
transform: rotate(720deg); 旋轉720度,
7. 制作三勾玉,先做一個圓,再用雙偽類制作一個圓弧,兩者結合就是勾玉了:
.zuoYu .yu{
position: absolute;
width: 15px;
height: 15px;
border-radius: 50%;
background-color: rgb(0, 0, 0);
}
.zuoYu .yu::after{
content: '';
position: absolute;
top: -6px;
left: -1px;
width: 6px;
height: 20px;
border-radius: 50%;
border-left: 6px solid rgb(0, 0, 0);
}
border-radius: 50%;
border-left: 6px solid rgb(0, 0, 0);
先讓偽類為圓,再只設定一條邊框,圓弧形成,再定位在父元素上,形成勾玉,
8. 給勾玉設定影片,讓其從最中間變大旋轉到勾玉所在的圈:
.zuoYu .yu:nth-child(1){
animation: yu1 2s ease-in 2s forwards;
}
@keyframes yu1{
0%{
opacity: 0;
left: 50%;
top: 50%;
transform:translate(-50%,-50%) scale(0.1) ;
}
100%{
left: 50%;
top: -9%;
transform: scale(1) rotate(80deg);
}
}
left: 50%;
top: 50%; 在最中間,
opacity:透明,
scale(0.1);縮小,
100%{…}到對應位置,同時變不透明和放大成正常大小,
9. 一樣的,給其它兩個勾玉影片:
.zuoYu .yu:nth-child(2){
animation: yu2 2s ease-in 2s forwards;
}
@keyframes yu2{
0%{
opacity: 0;
left: 50%;
top: 50%;
transform: translate(-50%,-50%) scale(0.1) ;
}
100%{
top: 60%;
left: -9%;
transform: scale(1) rotate(-60deg);
}
}
.zuoYu .yu:nth-child(3){
animation: yu3 2s ease-in 2s forwards;
}
@keyframes yu3{
0%{
opacity: 0;
right: 50%;
top: 50%;
transform: translate(-50%,-50%) scale(0.1);
}
100%{
top: 60%;
right: -9%;
transform: scale(1) rotate(180deg);
}
}
10.給兩個眼睛都設定一個白點,相當于反光效果吧,至此血輪眼做完了:
.zuo::before,.you::before{
content: '';
position: absolute;
left: 38%;
top: 30%;
width: 12px;
height: 12px;
border-radius: 50%;
background-color: rgb(255, 255, 255);
z-index: 10;
}
position: absolute;
left: 38%;
top: 30%; 定位相應的位置,
background-color: rgb(255, 255, 255); 白色,
z-index: 10; 設定為10,顯示在最上層,
11.設定輪回眼基本css樣式,跟血輪眼一樣:
.you{
transform: translateX(135px);
border-radius: 120px 0 120px 0;
box-shadow: inset -3px 2px 3px rgba(17, 17, 17, 0.8);
}
12.設定眼球寬高等:
.you::after{
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 95px;
height: 95px;
border-radius: 50%;
border: 2px solid #000;
animation: youcolor 2s linear forwards;
}
@keyframes youcolor{
0%,30%{
background-color: rgb(0, 0, 0);
}
100%{
background-color: rgb(144, 130, 183);
}
}
position: absolute; 絕對定位
top: 50%;
left: 50%;
transform: translate(-50%,-50%); 居中對齊,
animation:設定影片,讓其變紫色,forward:繼承最后一幀的屬性,
background-color: rgb(0, 0, 0); 黑色
background-color: rgb(144, 130, 183); 紫色,
13. 設定眼球最中間的黑點,跟血輪眼也差不多:
.dian{
position: absolute;
top: 50%;
left: 50%;
background-color: #000;
transform: translate(-50%,-50%);
border-radius: 50%;
z-index: 10;
animation: youda 3s linear forwards;
}
@keyframes youda{
0%{
height: 0px;
width: 0px;
}
100%{
height: 15px;
width: 15px;
}
}
14. 設定輪回眼每個圈,同時設定影片讓其變大:
.youYu{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
}
.quan{
position: absolute;
border-radius: 50%;
border: 2px solid #000;
z-index: calc(1 - var(--r));
animation: zhi 2s ease-out 2s forwards;
}
@keyframes zhi{
0%{
top: calc(var(--r) * 1px);
left: calc(var(--r) * 1px);
right: calc(var(--r) * 1px);
bottom: calc(var(--r) * 1px);
}
100%{
top: calc(var(--r) * -35px);
left: calc(var(--r) * -35px);
right: calc(var(--r) * -35px);
bottom: calc(var(--r) * -35px);
background-color: rgb(187, 177, 214);
}
}
z-index: calc(1 - var(–r)); 計算,讓最開始的圈顯示在最上層,
animation:設定影片,讓輪回圈慢慢變大,同時變成紫色,
完整代碼:
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
box-sizing: border-box;
}
body{
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
background-color: #000;
}
.zuo , .you{
width: 250px;
height: 120px;
background-color: rgb(255, 255, 255);
border-bottom: 5px solid rgb(70, 70, 70);
overflow: hidden;
position: relative;
}
.zuo{
transform: translateX(-135px);
border-radius: 0 120px 0 120px;
box-shadow: inset 3px 2px 3px rgba(17, 17, 17, 0.8);
}
.zuo::after{
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 95px;
height: 95px;
border-radius: 50%;
border: 2px solid #000;
animation: colour 2s linear forwards;
}
@keyframes colour{
0%,30%{
background-color: rgb(0, 0, 0);
}
100%{
background-color: rgb(255, 4, 4);
}
}
.zuoZong{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 0px;
height: 0px;
border-radius: 50%;
background-color: rgb(0, 0, 0);
z-index: 1;
animation: da 3s linear forwards;
}
@keyframes da{
100%{
width: 15px;
height: 15px;
}
}
.zuoYu{
position: absolute;
top: -25px;
left: -25px;
bottom: -25px;
right: -25px;
border-radius: 50%;
border: 2px solid rgb(0, 0, 0);
animation: zhuan 2s linear 2s forwards;
opacity: 0;
}
@keyframes zhuan{
100%{
opacity: 1;
transform: rotate(720deg);
}
}
.zuoYu .yu{
position: absolute;
width: 15px;
height: 15px;
border-radius: 50%;
background-color: rgb(0, 0, 0);
}
.zuoYu .yu::after{
content: '';
position: absolute;
top: -6px;
left: -1px;
width: 6px;
height: 20px;
border-radius: 50%;
border-left: 6px solid rgb(0, 0, 0);
}
.zuoYu .yu:nth-child(1){
animation: yu1 2s ease-in 2s forwards;
}
@keyframes yu1{
0%{
opacity: 0;
left: 50%;
top: 50%;
transform:translate(-50%,-50%) scale(0.1) ;
}
100%{
left: 50%;
top: -9%;
transform: scale(1) rotate(80deg);
}
}
.zuoYu .yu:nth-child(2){
animation: yu2 2s ease-in 2s forwards;
}
@keyframes yu2{
0%{
opacity: 0;
left: 50%;
top: 50%;
transform: translate(-50%,-50%) scale(0.1) ;
}
100%{
top: 60%;
left: -9%;
transform: scale(1) rotate(-60deg);
}
}
.zuoYu .yu:nth-child(3){
animation: yu3 2s ease-in 2s forwards;
}
@keyframes yu3{
0%{
opacity: 0;
right: 50%;
top: 50%;
transform: translate(-50%,-50%) scale(0.1);
}
100%{
top: 60%;
right: -9%;
transform: scale(1) rotate(180deg);
}
}
.zuo::before,.you::before{
content: '';
position: absolute;
left: 38%;
top: 30%;
width: 12px;
height: 12px;
border-radius: 50%;
background-color: rgb(255, 255, 255);
z-index: 10;
}
.you{
transform: translateX(135px);
border-radius: 120px 0 120px 0;
box-shadow: inset -3px 2px 3px rgba(17, 17, 17, 0.8);
/* filter: drop-shadow( 8px -5px 3px rgb(216, 59, 59));
*/ }
.you::after{
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
width: 95px;
height: 95px;
border-radius: 50%;
border: 2px solid #000;
animation: youcolor 2s linear forwards;
}
@keyframes youcolor{
0%,30%{
background-color: rgb(0, 0, 0);
}
100%{
background-color: rgb(144, 130, 183);
}
}
.dian{
position: absolute;
top: 50%;
left: 50%;
background-color: #000;
transform: translate(-50%,-50%);
border-radius: 50%;
z-index: 10;
animation: youda 3s linear forwards;
}
@keyframes youda{
0%{
height: 0px;
width: 0px;
}
100%{
height: 15px;
width: 15px;
}
}
.youYu{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
}
.quan{
position: absolute;
border-radius: 50%;
border: 2px solid #000;
z-index: calc(1 - var(--r));
animation: zhi 2s ease-out 2s forwards;
}
@keyframes zhi{
0%{
top: calc(var(--r) * 1px);
left: calc(var(--r) * 1px);
right: calc(var(--r) * 1px);
bottom: calc(var(--r) * 1px);
}
100%{
top: calc(var(--r) * -35px);
left: calc(var(--r) * -35px);
right: calc(var(--r) * -35px);
bottom: calc(var(--r) * -35px);
background-color: rgb(187, 177, 214);
}
}
</style>
</head>
<body>
<!-- 血輪眼 -->
<div class="zuo">
<!-- 眼睛最中間那個黑點 -->
<div class="zuoZong">
<!-- 三勾玉所在的圈 -->
<div class="zuoYu">
<!-- 三個勾玉 -->
<span class="yu"></span>
<span class="yu"></span>
<span class="yu"></span>
</div>
</div>
</div>
<!-- 輪回眼 -->
<div class="you">
<!-- 眼睛最中間那個黑點 -->
<div class="dian"></div>
<!-- 3個輪回圈 -->
<div class="youYu">
<span class="quan" style="--r:2;"></span>
<span class="quan" style="--r:3;"></span>
<span class="quan" style="--r:4;"></span>
</div>
</div>
</body>
</html>
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