.home_video .content_right span.c3::after {
    bottom: 30px;
}
@media only screen and (max-width: 1340px){
  .home_video .content_right span.c3::after {
    bottom: 28px;
  }
}
@media only screen and (max-width: 1150px){
  .home_video .content_right span.c3::after {
      bottom: 18px;
  }
}
@media only screen and (max-width: 820px){
  .home_video .content_right span.c3::after {
      bottom: 15px;
  }
}
@media only screen and (max-width: 667px){
  .home_video .content_right span.c3::after {
      bottom: 13px;
  }
}
@media only screen and (max-width: 568px){
  .home_video .content_right span.c3::after {
      bottom: 13px;
  }
}
@media only screen and (max-width: 480px){
  .home_video .content_right span.c3::after {
      bottom: 9px;
  }
}
@media only screen and (max-width: 320px){
  .home_video .content_right span.c3::after {
      bottom: 8px;
  }
}