开关灯效果

发布时间 2025-11-26 11:54:21

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项目来源于抖音博主 - 前端斌少

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此演示仅在桌面端浏览器中可用

html

     html
    
  
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>开关灯效果</title>
    <link rel="stylesheet" href="./style.css" />
  </head>
  <body>
    <div class="container">
      <div class="bulb">
        <div class="filaments"></div>
      </div>
    </div>
    <div class="floor">
      <div class="shadow"></div>
    </div>
    <script src="./script.js"></script>
  </body>
</html>

css

     css
    
  
body {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #001933;
  color: #fff;
}

.container {
  width: 75px;
  height: 275px;
  position: absolute;
  top: 0;
  animation: bulb-swing 3s infinite ease-in-out;
  transform-origin: top center;
}

.bulb {
  z-index: 10;
  display: block;
  width: 75px;
  height: 75px;
  border-radius: 50%;
  position: absolute;
  top: 200px;
  cursor: pointer;
  background-color: #ffd700;
  box-shadow: 5px 5px 80px gold, 5px -5px 80px gold, -5px 5px 80px gold, -5px -5px
      80px gold;
}

.bulb::before {
  content: "";
  position: absolute;
  width: 35px;
  height: 50px;
  background-color: #000;
  bottom: 100%;
  left: calc(50% - (35px / 2));
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  z-index: -1;
}

.bulb::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 250px;
  background-color: #000;
  bottom: 100%;
  left: calc(50% - (10px / 2));
  z-index: -1;
}

.bulb.off {
  background: transparent;
  box-shadow: none;
  border: 2px solid #000;
}

.filaments {
  display: block;
  position: absolute;
  width: 2px;
  height: 30px;
  background-color: #000;
  top: 2px;
  left: 28px;
  box-shadow: 17px 0 #000;
  opacity: 0;
}

.filaments::after {
  content: "";
  display: block;
  width: 2px;
  height: 12px;
  background-color: #000;
  box-shadow: 4.5px 0 #000, 9px 0 #000;
  position: absolute;
  bottom: -1px;
  left: 4px;
}

.filaments.off {
  opacity: 1;
}

@keyframes bulb-swing {
  0% {
    transform: rotate(-10deg);
  }
  50% {
    transform: rotate(10deg);
  }
  100% {
    transform: rotate(-10deg);
  }
}

.floor {
  position: absolute;
  background-color: #000c19;
  height: 200px;
  width: 100%;
  bottom: 0;
  left: 0;
}

.shadow {
  position: absolute;
  width: 50px;
  height: 50px;
  background-color: #524c11;
  border-radius: 50%;
  box-shadow: 20px 20px 100px gold, -20px 20px 100px gold, 20px -20px 100px gold,
    -20px -20px 100px gold;
  top: calc(50% - (50px / 2));
  left: calc(50% - (50px / 2));
  animation: shadow-swing 3s infinite ease-in-out;
}

.shadow.off {
  background-color: #000c19;
  box-shadow: none;
}

@keyframes shadow-swing {
  0% {
    transform: translateX(100px);
  }
  50% {
    transform: translateX(-100px);
  }
  100% {
    transform: translateX(100px);
  }
}

js

     js
    
  
const $shadow = document.querySelector(".shadow");
const $light = document.querySelector(".bulb");
const $filaments = document.querySelector(".filaments");

$light.addEventListener("click", () => {
  $light.classList.toggle("off");
  $shadow.classList.toggle("off");
  $filaments.classList.toggle("off");
});

#综合项目 #After伪元素 #Before伪元素 #动画