header img {
    width: 100%;
    height: auto;
    -webkit-mask-image: radial-gradient(circle, transparent 0,1%, rgba(44, 185, 15, 0.466) 80%);
    mask-image: radial-gradient(circle, transparent 0,1%, rgba(44, 185, 15, 0.466) 80%);
    filter: blur(1px);
}