<div class="noise"></div>
body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.noise {
  width: 400px;
  height: 100px;
  background: linear-gradient(to right, blue, transparent),
    url(https://grainy-gradients.vercel.app/noise.svg);
  filter: contrast(170%) brightness(1000%);
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.