   .playerBox {
      background: url('../images/video_bg3.jpg');
/*    height: 100vh;*/
	  height: calc(var(--vh, 1vh) * 100);
      width: 100%;
/*      position: relative;*/
	  position: sticky;
	  top:0;
      display: inline-block;
    }

.media-button:hover {
    background-color: rgb(0, 0, 0,0.8);
    color: #fff;
}

.media-button {
    background-color: rgb(0, 0, 0, 0);
    color: #fff;
}
.media-button.on {
background-color: rgb(0, 0, 0, 0.5);
}
.media-button {
    width: 70px;
    height: 70px;
    border-radius: 100%;
	display: flex;
    justify-content: center;
    align-items: center;
}
.media-button.play {
 position:absolute;
 right:calc(50% - 35px);
 bottom:calc(50% - 35px);
 transition:all 0.3s ease-out;
}

.media-button svg {
width:40px;
}

.media-button.pause svg {
width:30px;
}

.media-button.pause {
    width: 50px;
    height: 50px;
 position:absolute;
 right:20px;
 bottom:20px;
 transition:all 0.3s ease-out;
}

.goto {
display:flex;
align-items: center;
justify-content: center;
/*height: 100vh;*/
height: calc(var(--vh, 1vh) * 100);
}

.mousebox{
 position:absolute;
 right:calc(50% - 20px);
 bottom:10px;

}

.mouse {
	width: 40px;
	display: block;
	margin: 0px auto;
}

/* 휠 애니메이션 */
@keyframes wheelMove {
	0% { transform: translateY(0); opacity: 1; }
	50% { transform: translateY(10px); opacity: 1; }
	100% { transform: translateY(0); opacity: 1; }
}

.wheel {
	animation: wheelMove 1.5s infinite ease-in-out;
}

.main_title {
position:absolute;
display:flex;
align-items: center;
justify-content: center;
/*height: 100vh;*/
top: 0px; /* -70px */
height: calc(var(--vh, 1vh) * 100);
flex-direction: column;
opacity:1;
transition:0.3s all;
}

.main_title .title1{
color:#ffffff;
font-size:4em;
text-align:center;
margin-bottom: 7px;
text-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.main_title .title2{
color:#ffffff;
font-size:3.2em;
text-align:center;
text-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}

@media all and (max-width:768px) {
.main_title .title1{
color:#ffffff;
font-size:3em;
}

.main_title .title2{
color:#ffffff;
font-size:2.4em;
}

}