img {
    width: 35%;
    padding: 0px;
    display: flex;
    text-align: center;
    margin: auto;
}
video {
    
    width: 100%;
    height: auto;
    position: relative;
}
body {
  background: rgb(2,0,36);
  background: radial-gradient(circle, rgba(2,0,36,1) 0%, rgba(130,22,202) 100%);
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
h1 {
  font-size: 50px;
  margin: 0px;
  padding-top: 25px;
  padding-bottom: 25px;
  text-transform: uppercase;
  text-align: center;
  color:aliceblue;
  font-family: 'Kanit', sans-serif;
}
h5 {
  text-transform: uppercase;
  font-family: 'Kanit', sans-serif;
}
p {
  color: white;
  text-align: justify;
  margin: 3pc;
  font-size: 120%;
  font-family: 'Kanit', sans-serif;
}
header{

  position: fixed;
  top: 0;
  z-index: 1;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.404);
  
}

.container{

  width: 1280px;
  margin: auto;

}

.nav_checkbox{

  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 10px 0px;

}

.logo{

  text-decoration: none;
  color: white;
  padding-left: 10px;

}

.tab-nav{

  outline: none;
  display: none;

}

.label{

  display: none;
  color: white;

}

.burger{

  width: 35px;
  height: 5px;
  background-color: white;
  margin-top: 5px;

}

.content_nav{

  grid-column: 3;
  list-style: none;
  margin: 0;
  padding: 0;

}

.content_nav li{

  display: inline-block;
  padding-right: 10px;

}

.content_nav li a{

  text-decoration: none;
  color: white;
  position: relative;

}

.content_nav li a::after{

  content: '';
  display: block;
  height: 2px;
  background-color: white;
  position: absolute;
  left: 0;
  right: 0;
  transform-origin: right;
  transform: scale(0, 1);
  transition: transform ease-in-out 0.5s;

}

.content_nav li a:hover::after{

  transform: scale(1, 1);

}

.content_section{

  height: 120vh;
  background-image: url(back.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  display: grid;
  justify-items: center;
  align-items: center;


}

@media screen and (max-width: 1280px){

  .container{

      width: 100%;

  }

}

@media screen and (max-width: 770px){

  .label{

      display: grid;
      cursor: pointer;
      grid-column: 3;
      padding-right: 10px;

  }

  .content_nav{

      display: grid;
      grid-template-columns: 1fr;
      grid-column: 1/4;
      text-align: center;
      max-height: 0;
      overflow: hidden;
      transition: all ease-in-out 0.6s;

  }

  .nav_checkbox input:checked ~ .content_nav{

      max-height: 500px;

  }

  .content_nav li{

      padding: 15px 0px;

  }
}
.card-text{
  color: black;
}
.card-title{
  color:red;
}