CSS-Neon-Button/style.css at master · Levi9111/CSS-Neon-Button · GitHub

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:root {
  --clr-neon: hsl(317 100% 54%);
  --clr-bg: hsl(323 21% 16%);
}
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Balsamiq Sans", cursive;
  background: var(--clr-bg);
  color: var(--clr-neon);
}

.neon-button {
  font-size: 4rem;
  color: var(--clr-neon);
  text-decoration: none;
  border: var(--clr-neon) 0.125em solid;
  padding: 0.125em 1em;
  border-radius: 0.25em;

  text-shadow: 0 0 0.125em hsl(0 0% 100%/0.3), 0 0 0.45em currentColor;
  box-shadow: inset 0 0 0.5em 0 var(--clr-neon), 0 0 0.5em 0 var(--clr-neon);
  position: relative;
  transition: all 0.285s linear;
}

.neon-button::before {
  pointer-events: none;
  content: " ";
  position: absolute;
  top: 120%;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: var(--clr-neon);
  transform: perspective(1em) rotateX(40deg) scale(1, 0.35);
  filter: blur(1em);
  opacity: 0.5;
  transition: all 0.285s linear;
}

.neon-button::after {
  content: " ";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--clr-neon);
  z-index: -11;
  box-shadow: 0 0 1em 0.25em var(--clr-neon);
  opacity: 0;
  transition: all 0.285s linear;
}
.neon-button:hover,
.neon-button:focus {
  /* background-color: var(--clr-neon); */
  color: var(--clr-bg);
  text-shadow: none;
}
/*
.neon-button:hover::after,
.neon-button:focus::after,
.neon-button:hover::before,
.neon-button:focus::before {
  opacity: 1;
} */

.neon-button:hover::after,
.neon-button:focus::after {
  opacity: 1;
}

.neon-button:hover::before,
.neon-button:focus::before {
  opacity: 1;
}