简单css特效制作

悬停放大效果

通过transform: scale()实现元素悬停时放大，搭配transition平滑过渡：

.box {
  width: 200px;
  height: 200px;
  transition: transform 0.3s ease;
}
.box:hover {
  transform: scale(1.1);
}

渐变背景动画

使用linear-gradient和animation创建流动渐变背景：

.element {
  background: linear-gradient(90deg, #ff9a9e, #fad0c4);
  background-size: 400% 400%;
  animation: gradientBG 5s ease infinite;
}
@keyframes gradientBG {
  0% { background-position: 0% 50% }
  50% { background-position: 100% 50% }
  100% { background-position: 0% 50% }
}

文字阴影效果

通过多层text-shadow创造立体文字：

.text-3d {
  color: white;
  text-shadow: 
    0 1px 0 #ccc,
    0 2px 0 #bbb,
    0 3px 0 #aaa,
    0 4px 5px rgba(0,0,0,0.2);
}

按钮点击波纹

利用伪元素和动画实现Material Design风格的点击波纹：

.btn {
  position: relative;
  overflow: hidden;
}
.btn:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255,255,255,0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1,1) translate(-50%);
  transform-origin: 50% 50%;
}
.btn:active:after {
  animation: ripple 0.6s ease-out;
}
@keyframes ripple {
  0% { transform: scale(0,0); opacity: 1; }
  100% { transform: scale(20,20); opacity: 0; }
}

卡片翻转效果

通过transform-style: preserve-3d实现3D翻转：

.card {
  position: relative;
  transform-style: preserve-3d;
  transition: all 0.8s ease;
}
.card:hover {
  transform: rotateY(180deg);
}
.front, .back {
  position: absolute;
  backface-visibility: hidden;
}
.back {
  transform: rotateY(180deg);
}

霓虹文字边框

结合box-shadow和text-shadow创建发光效果：

.neon {
  color: #fff;
  text-shadow: 
    0 0 5px #fff,
    0 0 10px #fff,
    0 0 20px #ff00de;
  box-shadow: 
    0 0 5px #fff,
    inset 0 0 5px #fff,
    0 0 20px #08f,
    inset 0 0 20px #08f;
}