text-shadow.css

body {
  background: #aaa;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
h1 {
 font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
  color: white;
  font-size: 15vw;
background: linear-gradient(-90deg, rgb(223 223 223) 0%, rgba(190,190,190,1) 100%);

  line-height: 1;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;

}
h1:before {
content: attr(data-text);
    -webkit-background-clip: none;
    -webkit-text-fill-color: black;
    position: absolute;
    z-index: -1;
    filter: blur(14px);
    transform: skew(67deg, 0) translate(-20%, 15%) scaleY(0.5);
    -webkit-mask-image: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(0,0,0,1) 100%);
    padding: 0 22px;
}