纯CSS创建的透明变色的button按钮效果

使用方法

body {
  background: hsl(0 0% 98%);
  font-family: "Geist Sans", sans-serif;
  overflow-x: hidden;
}

button {
  position: fixed;
  bottom: 3rem;
  left: 50%;
  translate: -50% 0;
  font-size: 1.5rem;
  font-family: "Geist Sans", sans-serif;
  font-weight: 80;
  padding: 1rem 4rem;
  border-radius: 6px;
  border: 0;
  mix-blend-mode: difference;
  transition: filter 0.2s;
  background: white;
  color: black;
}

button::before {
  content: "Order now";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 2;
  mix-blend-mode: none;
}

button::after {
  content: "";
  left: 8%;
  right: 8%;
  height: 12%;
  top: 130%;
  background: white;
  position: absolute;
  border-radius: 100px;
  mix-blend-mode: difference;
}

button:is(:hover, :focus-visible) {
  filter: brightness(0.5);
}

h1 {
  font-weight: 120;
  background: linear-gradient(hsl(0 0% 10%), hsl(0 0% 60%));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

section {
  height: 100vh;
  display: grid;
  place-items: center;
  font-size: clamp(2rem, 4vw + 1rem, 8rem);
}

main {
  display: grid;
  gap: 8rem;
  justify-items: center;
  padding-bottom: 50vh;
}

img {
  height: 50vh;
}

img:nth-of-type(even) {
  translate: -25% 0;
}

img:nth-of-type(odd) {
  translate: 25% 0;
}