#glow1{
position:relative;
font-size:36px;
font-weight:800;
color:#fff;
overflow:hidden;
}

#glow1::before{
content:"";
position:absolute;
top:0;
left:-120%;
width:60%;
height:100%;
background:linear-gradient(
120deg,
transparent,
rgba(255,255,255,0.9),
transparent
);
filter:blur(6px);
animation:shimmerMove 6s infinite;
}

@keyframes shimmerMove{
0%{left:-120%;}
100%{left:120%;}
}