#t_menu {
  position: relative;
  display: -webkit-box;
  display: flex;
  display: -ms-flexbox;
  justify-content: space-between;
  -webkit-box-pack: space-between;
  -ms-flex-pack: space-between;
  align-items: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
}
#t_menu div {
  width: 40%;
  -webkit-clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
          clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  opacity: 0;
}
#t_menu .rhombus2 {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  margin: 23.4% 0 0 20.6%;
}
#t_menu .rhombus3 {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  margin: 0 0 0 41.2%;
}
#t_menu .rhombus4 {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  margin: 23.4% 0 0 61.8%;
}
#t_menu .rhombus5 {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  margin: 46.8% 0 0 41.2%;
}
#t_menu .rhombus6 {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  margin: 70.2% 0 0 20.6%;
}
#t_menu a {
  position: relative;
  display: block;
  width: 100%;
  padding-bottom: 114%;
  background: linear-gradient(90deg, #41a4fd, #0ef4ff);
}
#t_menu a.bg-java {
  background: linear-gradient(90deg, #F75D8BFF, #FEDC40FF);
}
#t_menu a:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #333;
  -webkit-transition: 1s;
  transition: 1s;
  opacity: 0;
  z-index: 1;
}
#t_menu a dl {
  position: absolute;
  top: 50%;
  width: 100%;
  font-size: 2.5rem;
  text-align: center;
  line-height: 0;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
  z-index: 2;
}
#t_menu a dl dt {
  font-weight: 700;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-name: hoverinight;
  animation-name: hoverinRight;
}
@-webkit-keyframes hoverinRight {
  0% {
    opacity: 0;
    -webkit-transform: translateX(-10px);
    transform: translate(-10px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }
}
@keyframes hoverinRight {
  0% {
    opacity: 0;
    -webkit-transform: translateX(-10px);
    transform: translate(-10px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }
}
#t_menu a dl dd {
  color: #fff;
  font-size: 2rem;
  opacity: 0;
}
#t_menu a:hover:before {
  -webkit-transition: 1s;
  transition: 1s;
  opacity: 1;
}
#t_menu a:hover dt {
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-name: hoveroutRight;
  animation-name: hoveroutRight;
}
@-webkit-keyframes hoveroutRight {
  0% {
    opacity: 1;
    -webkit-transform: translateX(0);
    transform: translate(0);
  }
  100% {
    opacity: 0;
    -webkit-transform: translateX(30px);
    transform: translateX(30px);
  }
}
@keyframes hoveroutRight {
  0% {
    opacity: 1;
    -webkit-transform: translateX(0);
    transform: translate(0);
  }
  100% {
    opacity: 0;
    -webkit-transform: translateX(30px);
    transform: translateX(30px);
  }
}
#t_menu a:hover dd {
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-name: hoverinLeft;
  animation-name: hoverinLeft;
}
@-webkit-keyframes hoverinLeft {
  0% {
    -webkit-transform: translateX(-30px);
    transform: translate(-30px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }
}
@keyframes hoverinLeft {
  0% {
    -webkit-transform: translateX(-30px);
    transform: translate(-30px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }
}

#t_movie {
  margin-top: 25%;
}
#t_movie video {
  width: 100%;
}