html {
  background: url(../img/HinhTienVaNhatLinh.jpg) no-repeat center fixed;
  background-size: cover;
  background-color: rgba(228, 131, 40, 0.5);
}

#loichuc,
#video {
  text-align: center;
  display: block;
  width: 48%;
  float: left;
}

#loichuc {
  margin-top: 10%;
  margin-left: 30px;
}

h2 {
  color: salmon;
  font-size: xx-large;
  text-transform: uppercase;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
  animation-name: animate;
  animation-duration: 5s;
  animation-iteration-count: infinite;
}

@keyframes animate {
  0% {
    left: 0px;
    transform: rotate(0deg);
  }
  25% {
    left: 0px;
    transform: rotate(20deg);
    color: crimson;
  }
  38% {
    left: 400px;
    transform: rotate(0deg);
    color: gold;
  }
  55% {
    left: 400px;
    transform: rotate(-20deg);
    color: aqua;
  }
  70% {
    left: 0px;
    transform: rotate(0deg);
    color: violet;
  }
  100% {
    left: 0px;
    transform: rotate(-360deg);
  }
}

p {
  border-radius: 20px;
  padding: 20px;
  background-color: wheat;
  opacity: 0.8;
  font-size: larger;
  color: rgb(0, 0, 0);
  margin-left: 30px;
}

video.cangiua {
  width: 50%;
  margin-left: auto;
  margin-right: auto;
  margin-top: 20px;
  border: 5px solid rgb(255, 166, 0);
  border-radius: 5px;
}

@media screen and (max-width: 430px){
  h2 {
    font-size: smaller;
  }

  p {
    padding: 5px;
    margin: 0;
    font-size: small;
    text-align: left;
    border-radius: 5px;
  }

  @keyframes animate {
    0% {
      left: 0px;
      transform: rotate(0deg);
    }
    25% {
      left: 0px;
      transform: rotate(20deg);
      color: crimson;
    }
    38% {
      left: 40px;
      transform: rotate(0deg);
      color: gold;
    }
    55% {
      left: 40px;
      transform: rotate(-20deg);
      color: aqua;
    }
    70% {
      left: 0px;
      transform: rotate(0deg);
      color: violet;
    }
    100% {
      left: 0px;
      transform: rotate(-360deg);
    }
  }

  #loichuc, #video {
  width: 100%;
  }

  #loichuc {
    margin: 0%;
  }
}