.intro-image {
    height: 100vh;
    width: 100vw;
    filter: brightness(0.25);
}

.intro-button-div {
    position: absolute;
    bottom: 40px;
    display: block;
    width: 100%;
    text-align: center;
}

.intro-button-span {
	background-color: #ab0909;
	width: 50px;
	height: 50px;
	position: absolute;
	animation: intro-button-span-move 2s infinite;
	border-radius: 5%;
    cursor: pointer;
}
.intro-button-span img{
    height:20px;
    margin:15px 0px;
}

.intro-logo-div {
    position: absolute;
}

@keyframes intro-button-span-move {
    0% { bottom:20px; }
    25% { bottom:30px; }
    50% { bottom:20px; }
    75% { bottom:30px; }
    100% { bottom:20px; }
   
  }