<div class="gradient-stroke">
  GRADIENT STROKE
</div>

@import url('https://fonts.googleapis.com/css2?family=Righteous&display=swap');

body {
  height:100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: black;
}

.gradient-stroke {
  font-size:80px;
  font-family: 'Righteous', cursive;
  background-image: linear-gradient( 69.7deg,  rgba(244,37,243,1) 1.4%, rgba(244,87,1,1) 36.2%, rgba(255,204,37,1) 72.2%, rgba(20,196,6,1) 113%);
  -webkit-background-clip: text;
  -webkit-text-stroke-color: transparent;
  -webkit-text-stroke-width: 10px;
  padding: 10px;
  letter-spacing:5px;
  filter: brightness(1.3);
}