html, body, div.welcome {
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
	overflow: hidden;
	font-family: 'Roboto', sans-serif;
}

div.welcome {
	background-image: url('welcome_image.jpg');
	background-position: center;
	background-size: cover;
}

span.logo_span {
	width: 100%;
	display: table;
	position: absolute;
	top: 15%;
	text-align: center;
}

.logo_span img {
    width: 100%;
	max-width: 450px;
}

.text_span {
	display: block;
    font-size: 24px;
    color: #f9f9f9;
    padding: 40px;
	text-shadow: 1px 2px 5px #212121;
}

.animation {
    margin-top: 35px;
}

.animation > div {
    width: 10px;
    height: 10px;
    display: inline-block;
    vertical-align: middle;
    border-radius: 50%;
    background-color: #fff;
    opacity: 0.2;
    transform: scale(0.5);
    animation: animation 1.8s infinite ease-in;
}
.animation .dot2 {
    animation-delay: 0.2s;
}
.animation .dot3 {
    animation-delay: 0.4s;
}
.animation .dot4 {
    animation-delay: 0.6s;
}
.animation .dot5 {
    animation-delay: 0.8s;
}
@keyframes animation {
    0%, 40%, 100% {
        transform: scale(0.5);
        opacity: 0.2;
    }

    20% {
        transform: scale(1.0);
        opacity: 1;
    }
}