JSFiddle - React, Tailwind, and code Playground

HTML

<h1 class="text bg-1">Простой градиентный текст</h1>

CSS

.text {
  text-align: center;
  font-size: 10vw;
  color: #fff;
}
.bg-1 {
  background: linear-gradient(5deg, rgba(73, 221, 216, 1) 0%, #3369e7 100%);
  -webkit-text-fill-color: transparent; 
  -webkit-background-clip: text;
}