cross-browser-fullscreen.css

.img-02:-webkit-full-screen img {
    display: block;
    margin: 0; /* overide pre-existing margin styles */	
}

.img-02:-moz-full-screen img {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0; /* overide pre-existing margin styles */
}

.img-02:-ms-fullscreen img {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0; /* overide pre-existing margin styles */
}