前言
诶？这有一个按钮(～￣▽￣)～，这是一个在html中实现的具有金属质感并且能镜面反射的按钮~
效果
电脑效果
手机效果
说明
主要思路是使用 navigator.mediaDevices.getUserMedia()调用设备摄像头来实现镜面反射，css部分用到了filter属性，后期可以根据需要调整它的属性值，做出更多反射效果。有了思路，实现起来还是比较简单的。
需要注意的是window.navigator.mediaDevices.getUserMedia()只能在localhost或https下才能使用，否则会报错哦。
完整代码
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<style>
body {
background-color: rgb(86, 86, 86);
}
:root {
--transition: 0.1s;
--border-radius: 56px;
}
.button-wrap {
margin: calc(30vh - 50px) auto 0;
width: 300px;
height: 100px;
position: relative;
transition: transform var(--transition), box-shadow var(--transition);
}
.button-wrap.pressed {
transform: translateZ(0) scale(0.98);
}
.button {
width: 100%;
height: 100%;
overflow: hidden;
border-radius: var(--border-radius);
box-shadow:
0px 0px 10px rgba(0, 0, 0, 0.6),
0px 0px 20px rgba(0, 0, 0, 0.4),
0px 0px 40px rgba(0, 0, 0, 0.2),
inset 0 2px 2px rgba(255, 255, 255, 0.8),
inset 0 -2px 2px rgba(255, 255, 255, 0.8);
transform: translateZ(0);
cursor: pointer;
}
.button.pressed {
box-shadow:
0px 0px 5px rgba(0, 0, 0, 0.6),
0px 0px 10px rgba(0, 0, 0, 0.4),
0px 0px 20px rgba(0, 0, 0, 0.2),
inset 0 2px 2px rgba(255, 255, 255, 0.8),
inset 0 -2px 2px rgba(255, 255, 255, 0.8);
}
.text {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
pointer-events: none;
color: rgba(0, 0, 0, 0.9);
font-size: 48px;
font-weight: bold;
text-shadow:
0px 2px 1px rgba(255, 255, 255, 0.3),
0px -2px 1px rgba(255, 255, 255, 0.3);
}
.text::selection {
background-color: transparent;
}
.button .button-reflection {
width: 100%;
height: 100%;
transform: scaleX(-1);
object-fit: cover;
opacity: 0.7;
filter: blur(2px) saturate(0.6) brightness(1.1);
object-position: 0 -100px;
}
</style>
</head>
<body>
<div id="app">
<div v-show="cameraOpened" :class="`button-wrap ${buttonPressed ? 'pressed' : ''}`">
<div :class="`button ${buttonPressed ? 'pressed' : ''}`" @mousedown="setButtonPressed(true)"
@mouseup="setButtonPressed(false)" @touchstart="setButtonPressed(true)" @touchend="setButtonPressed(false)">
<video class="button-reflection" ref="reflectionRef" />
</div>
<div class="text">Button</div>
</div>
</div>
<script>
new Vue({
el: '#app',
data: {
cameraOpened: false,
buttonPressed: false
},
mounted() {
const _this = this
navigator.mediaDevices.getUserMedia({
video: true,
audio: false
}).then((stream) => {
const video = this.$refs.reflectionRef
video.srcObject = stream;
video.onloadedmetadata = () => {
_this.cameraOpened = true
video.play()
}
})
},
methods: {
setButtonPressed(val) {
this.buttonPressed = val
}
}
})
</script>
</body>
</html>总结
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