<img src="https://source.unsplash.com/random" alt="Random image from unsplash" />
* {
    box-sizing: border-box;
}

body {
    height: 100vh;
    overflow: hidden;
    margin: 0;
}


img {
    width: calc(100vw + 22px);
    height: calc(100vh + 22px)
    object-fit: cover;
    animation: from-blur 2s linear;
}

@keyframes from-blur {
    from {
        filter: blur(22px);
    }
    to {
        filter: blur(0px);
    }
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.