定义标签
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| <div class="card">
<img src="3.3.png" alt="x" width="100%" />
<h3>北极光之夜</h3>
<p>生活下去,错误下去,堕落下去,为胜利而欢呼,从生命中重新创造生命!</p>
</div>
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卡片和文字的基本样式
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| .card {
width: 200px;
height: 300px;
box-shadow: 1px 1px 5px #555;
cursor: pointer;
background-color: rgb(243, 243, 243);
position: relative;
overflow: hidden;
}
.card h3,
.card p {
padding: 5px;
text-align: center;
font-family: "fangsong";
font-weight: bold;
user-select: none;
}
|
cursor: pointer; 鼠标样式为小手。
overflow: hidden; 子元素大小超出卡片区域的被隐藏。
user-select: none; 文本不可选中。
js部分，见注释
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| <script>
var card = document.querySelector(".card");
card.addEventListener("click", function (e) {
let x = e.clientX - this.offsetLeft;
let y = e.clientY - this.offsetTop;
let circle = document.createElement("span");
circle.style.left = x + "px";
circle.style.top = y + "px";
card.appendChild(circle);
setInterval(function () {
circle.remove();
}, 1000);
});
</script>
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添加上一步创建的 span 元素的css样式
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| .card span {
position: absolute;
transform: translate(-50%, -50%);
background-color: rgb(255, 254, 254);
border-radius: 50%;
animation: big 1s;
}
@keyframes big {
0% {
width: 0px;
height: 0px;
opacity: 1;
}
100% {
width: 400px;
height: 400px;
opacity: 0;
}
}
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position: absolute; 绝对定位。
transform: translate(-50%,-50%); 向左和上移动自身宽度和高度的一半。
animation: big 1s； 定义动画，刚好1s完成动画 。
opacity: 1; 不透明。
opacity: 0; 透明。
完整源码
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| <!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<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-image: radial-gradient(white, black);
}
.card {
width: 200px;
height: 300px;
box-shadow: 1px 1px 5px #555;
cursor: pointer;
background-color: rgb(243, 243, 243);
position: relative;
overflow: hidden;
}
.card h3,
.card p {
padding: 5px;
text-align: center;
font-family: "fangsong";
font-weight: bold;
user-select: none;
}
.card span {
position: absolute;
transform: translate(-50%, -50%);
background-color: rgb(255, 254, 254);
border-radius: 50%;
animation: big 1s;
}
@keyframes big {
0% {
width: 0px;
height: 0px;
opacity: 1;
}
100% {
width: 400px;
height: 400px;
opacity: 0;
}
}
</style>
</head>
<body>
<div class="card">
<img src="3.3.png" alt="x" width="100%" />
<h3>北极光之夜</h3>
<p>生活下去,错误下去,堕落下去,为胜利而欢呼,从生命中重新创造生命!</p>
</div>
<script>
var card = document.querySelector(".card");
card.addEventListener("click", function (e) {
let x = e.clientX - this.offsetLeft;
let y = e.clientY - this.offsetTop;
let circle = document.createElement("span");
circle.style.left = x + "px";
circle.style.top = y + "px";
card.appendChild(circle);
setInterval(function () {
circle.remove();
}, 1000);
});
</script>
</body>
</html>
|
