@keyframes glowing {
    0% { filter: drop-shadow(0px 0px 50px #116466); }
    50% { filter: drop-shadow(0px 0px 5px #116466); }
    100% { filter: drop-shadow(0px 0px 50px #116466); }
}

@keyframes back {
    0% { background: #000000d1; }
    50% {  background: #00000070; }
    100% { background: #000000d1; }
}

html,body{ 
	width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;margin:0;padding:0;
}
body{
	background:url(bg.jpg) no-repeat;
	background-position: top center;
	background-size: cover;
}

img{
	filter: drop-shadow(0px 0px 6px #116466);
	animation: glowing 3s linear infinite;
	max-width:50vw;
	max-height:70vh;
}
div{
	width: 100%;
    height: 100%;
    background: #000000d1;
    position: absolute;
	animation: back 30s linear infinite;
    top:0px;
    left:0px;
}