html { 
  background: url("bg_img.jpg") no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}
body {
	height:100%;
    margin: 0;
    padding: 0;
}
.page {
	position:relative;display:table;table-layout:fixed;width:100%;height:100%;line-height:normal;text-align:center;font-family:Open Sans, sans-serif;font-size:1.1em;color:#fff;background-color:#f0f0f0;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;background-attachment:fixed
	
}
h1,h2,h3,h4,h5{line-height:1.3;font-weight:normal}

*, *::before, *::after {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
.container {
    z-index: 1;
    position: absolute;
	width: 100%;
    overflow: hidden;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    min-height: 35rem;
	//min-height: 55rem;
	margin:0 auto;
    background-size: cover;
    background-position: center center;

    padding: 2rem;
}

.bird {
    background-image: url(bird-cells.svg);
    background-size: auto 100%;
    width: 88px;
    height: 125px;
    will-change: background-position;
    -webkit-animation-name: fly-cycle;
    animation-name: fly-cycle;
    -webkit-animation-timing-function: steps(10);
    animation-timing-function: steps(10);
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
}
.bird--one {
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-delay: -0.5s;
    animation-delay: -0.5s;
}
.bird--two {
    -webkit-animation-duration: 0.9s;
    animation-duration: 0.9s;
    -webkit-animation-delay: -0.75s;
    animation-delay: -0.75s;
}
.bird--three {
    -webkit-animation-duration: 1.25s;
    animation-duration: 1.25s;
    -webkit-animation-delay: -0.25s;
    animation-delay: -0.25s;
}
.bird--four {
    -webkit-animation-duration: 1.1s;
    animation-duration: 1.1s;
    -webkit-animation-delay: -0.5s;
    animation-delay: -0.5s;
}
.bird-container {
    position: absolute;
    top: 20%;
    left: -7.5vw;
    -webkit-transform: scale(0);
    transform: scale(0);
    will-change: transform;
    -webkit-animation-name: fly-right-one;
    animation-name: fly-right-one;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
}
.bird-container--one {
    -webkit-animation-duration: 15s;
    animation-duration: 15s;
    -webkit-animation-delay: 0;
    animation-delay: 0;
}
.bird-container--two {
    -webkit-animation-duration: 16s;
    animation-duration: 16s;
    -webkit-animation-delay: 1s;
    animation-delay: 1s;
}
.bird-container--three {
    -webkit-animation-duration: 14.6s;
    animation-duration: 14.6s;
    -webkit-animation-delay: 9.5s;
    animation-delay: 9.5s;
}
.bird-container--four {
    -webkit-animation-duration: 16s;
    animation-duration: 16s;
    -webkit-animation-delay: 10.25s;
    animation-delay: 10.25s;
}
 @-webkit-keyframes fly-cycle {
 100% {
 background-position: -900px 0;
}
}
 @keyframes fly-cycle {
 100% {
 background-position: -900px 0;
}
}
@-webkit-keyframes fly-right-one {
 0% {
 left: -10%;
 -webkit-transform: scale(0.3);
 transform: scale(0.3);
}
 10% {
 left: 10%;
 -webkit-transform: translateY(2vh) scale(0.4);
 transform: translateY(2vh) scale(0.4);
}
 20% {
 left: 30%;
 -webkit-transform: translateY(0vh) scale(0.5);
 transform: translateY(0vh) scale(0.5);
}
 30% {
 left: 50%;
 -webkit-transform: translateY(4vh) scale(0.6);
 transform: translateY(4vh) scale(0.6);
}
 40% {
 left: 70%;
 -webkit-transform: translateY(2vh) scale(0.6);
 transform: translateY(2vh) scale(0.6);
}
 50% {
 left: 90%;
 -webkit-transform: translateY(0vh) scale(0.6);
 transform: translateY(0vh) scale(0.6);
}
 60% {
 left: 110%;
 -webkit-transform: translateY(0vh) scale(0.6);
 transform: translateY(0vh) scale(0.6);
}
 100% {
 left: 110%;
 opacity: 1;
 -webkit-transform: translateY(0vh) scale(0.6);
 transform: translateY(0vh) scale(0.6);
}
}
@keyframes fly-right-one {
 0% {
 left: -10%;
 -webkit-transform: scale(0.3);
 transform: scale(0.3);
}
 10% {
 left: 10%;
 -webkit-transform: translateY(2vh) scale(0.4);
 transform: translateY(2vh) scale(0.4);
}
 20% {
 left: 30%;
 -webkit-transform: translateY(0vh) scale(0.5);
 transform: translateY(0vh) scale(0.5);
}
 30% {
 left: 50%;
 -webkit-transform: translateY(4vh) scale(0.6);
 transform: translateY(4vh) scale(0.6);
}
 40% {
 left: 70%;
 -webkit-transform: translateY(2vh) scale(0.6);
 transform: translateY(2vh) scale(0.6);
}
 50% {
 left: 90%;
 -webkit-transform: translateY(0vh) scale(0.6);
 transform: translateY(0vh) scale(0.6);
}
 60% {
 left: 110%;
 -webkit-transform: translateY(0vh) scale(0.6);
 transform: translateY(0vh) scale(0.6);
}
 100% {
 left: 110%;
 opacity: 1;
 -webkit-transform: translateY(0vh) scale(0.6);
 transform: translateY(0vh) scale(0.6);
}
}
@-webkit-keyframes fly-right-two {
 0% {
 left: -10%;
 opacity: 1;
 -webkit-transform: translateY(-2vh) scale(0.5);
 transform: translateY(-2vh) scale(0.5);
}
 10% {
 left: 10%;
 -webkit-transform: translateY(0vh) scale(0.4);
 transform: translateY(0vh) scale(0.4);
}
 20% {
 left: 30%;
 -webkit-transform: translateY(-4vh) scale(0.6);
 transform: translateY(-4vh) scale(0.6);
}
 30% {
 left: 50%;
 -webkit-transform: translateY(1vh) scale(0.45);
 transform: translateY(1vh) scale(0.45);
}
 40% {
 left: 70%;
 -webkit-transform: translateY(-2.5vh) scale(0.5);
 transform: translateY(-2.5vh) scale(0.5);
}
 50% {
 left: 90%;
 -webkit-transform: translateY(0vh) scale(0.45);
 transform: translateY(0vh) scale(0.45);
}
 51% {
 left: 110%;
 -webkit-transform: translateY(0vh) scale(0.45);
 transform: translateY(0vh) scale(0.45);
}
 100% {
 left: 110%;
 -webkit-transform: translateY(0vh) scale(0.45);
 transform: translateY(0vh) scale(0.45);
}
}
@keyframes fly-right-two {
 0% {
 left: -10%;
 opacity: 1;
 -webkit-transform: translateY(-2vh) scale(0.5);
 transform: translateY(-2vh) scale(0.5);
}
 10% {
 left: 10%;
 -webkit-transform: translateY(0vh) scale(0.4);
 transform: translateY(0vh) scale(0.4);
}
 20% {
 left: 30%;
 -webkit-transform: translateY(-4vh) scale(0.6);
 transform: translateY(-4vh) scale(0.6);
}
 30% {
 left: 50%;
 -webkit-transform: translateY(1vh) scale(0.45);
 transform: translateY(1vh) scale(0.45);
}
 40% {
 left: 70%;
 -webkit-transform: translateY(-2.5vh) scale(0.5);
 transform: translateY(-2.5vh) scale(0.5);
}
 50% {
 left: 90%;
 -webkit-transform: translateY(0vh) scale(0.45);
 transform: translateY(0vh) scale(0.45);
}
 51% {
 left: 110%;
 -webkit-transform: translateY(0vh) scale(0.45);
 transform: translateY(0vh) scale(0.45);
}
 100% {
 left: 110%;
 -webkit-transform: translateY(0vh) scale(0.45);
 transform: translateY(0vh) scale(0.45);
}
}