.video{
  height: 100vh;
}
.video .main_title{
  position: absolute;
  left: 50%;
  top: 50%;

  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.video .main_title h1{
  font-size: 4rem;
  color: #fff;
  margin-top: 10px;
  text-align: center;
  line-height: 4rem;
}
.main_title::before{
  content: "";
  display: block;
  margin: 0 auto;
  background: url(../img/screw.svg) no-repeat;
  width: 75px;
  height: 30px;
}



.video .scroll{
    width: 100%;
    height: 6rem;
    color: #fff;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-align: center;
    position: absolute;
    left: 0;
    bottom: 0;
}

.video .scroll:after {
    content: '';
    width: 1px;
    height: 0;
    background: #fff;
    position: absolute;
    left: 50%;
    top: 40%;
    animation: scrollLine 1s ease infinite;
}
.video .scroll p{
    margin: 2rem 0;
}
@keyframes scrollLine {
    0% {
        height: 0;
        top: 70%
    }

    40% {
        height: 30%;
        top: 70%
    }

    80% {
        height: 0;
        top: 100%
    }

    100% {
        height: 0;
        top: 100%
    }
}



@media only screen and (min-width: 481px) {






}



@media only screen and (min-width: 1024px) {
.video .main_title h1{
  font-size: 5rem;
}




}