* {
  margin: 0;
  padding: 0;
  background-color: #000;
  color: #fff;
}
.navbar {
  background-color: #000;
  position: sticky;
  width: 100%;
  top: 0;
  /* position: fixed; */
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 80px;
}

.nav-list,
.nav-list-btn {
  list-style-type: none;
}
a {
  text-decoration: none;
  color: #fff;
}
.nav-list {
  margin-left: 200px;
}
/* .nav-list-btn {
  margin-left: 150px;
} */
.nav-list .nav-items {
  display: inline-block;
  color: #fff;
  padding: 25px 25px;
}
a:hover {
  color: blue;
}
.nav-list-btn .nav-items-btn {
  display: inline-block;
}
.dropdown {
  float: right;
  overflow: hidden;
}
.dropdown-content {
  position: absolute;
  display: none;
  background-color: #000;
  color: #fff;
  min-width: 180px;
  z-index: 1;
}
.dropdown-content a {
  float: none;
  display: block;
  text-align: left;
  padding: 12px 16px;
}
.dropdown:hover .dropdown-content {
  display: block;
}
.btn-1 {
  padding: 12px 20px;
  background: #000;
  color: #fff;
  border: 3px solid #fff;
  border-radius: 25px;
  font-size: 17px;
}
.btn-2 {
  margin-left: 20px;
  padding: 12px 25px;
  background: #000;
  color: #fff;
  border: 3px solid #fff;
  border-radius: 25px;
  font-size: 17px;
}
.menu {
  display: none;
}
.menu-line {
  width: 20px;
  height: 3px;
  background-color: #fff;
  margin-bottom: 4px;
  /* 
  padding-top: 2px;
   */
}
/* container */
.header {
  color: #fff;
  font-size: 40px;
  text-align: center;
  margin-top: 100px;
}
.desc {
  color: #fff;
  font-size: 20px;
  text-align: center;
  margin-top: 28px;
}
.video {
  width: 100%;
  height: 650px;
  margin-top: 100px;
  left: 0;
}
/* container2 */
.container2 {
  display: flex;
  flex-direction: row;
  margin-top: 50px;
  margin-right: 140px;
  font-size: 19px;
}
.video-1 {
  height: 5px;

  margin-left: 150px;
}
description {
  /* margin-top: 20px; */
}
/* container2 */
.container {
  display: flex;
  flex-direction: row;
  margin-top: 50px;
  margin-right: 140px;
  font-size: 19px;
}
.description2 {
  margin-left: 150px;
}

.video2 {
  height: 50px;
  margin-right: 50px;
}
/* container3 */
.container3 {
  display: flex;
  flex-direction: column;
}
.video-3 {
  margin-left: 300px;
  margin-right: 300px;
  height: 50px;
}
.description-3 {
  margin-top: 500px;
  margin-left: 180px;
  margin-right: 180px;
  font-size: 18px;
}
/* container4 */
.container-4 {
  display: flex;
  flex-direction: column;
}
.video-4 {
  margin-left: 300px;
  margin-right: 300px;
  height: 50px;
}
.description-4 {
  margin-top: 500px;
  margin-left: 180px;
  margin-right: 180px;
  font-size: 18px;
}
/* btn-container */
.btn-container {
  margin-left: 650px;
  margin-top: 80px;
  /* margin-right: 200px; */
}
.btn {
  /* width: 100px;
  height: 20px; */
  background: linear-gradient(#2b5876, #4e4376);
  padding: 15px;
  text-align: center;
  margin-bottom: 8px;
  border-radius: 4px;
  border: none;
  font-size: 18px;
}
.text {
  margin-top: 80px;
  margin-left: 680px;
  margin-bottom: 60px;
}
@media screen and (max-width: 600px) {
  .navbar {
    flex-direction: column;
    position: sticky;
    /* width: 100%; */

    top: 0;
  }
  .menu {
    display: block;
    position: absolute;
    right: 40px;
    top: 20px;
    border: 2px solid #fff;
    padding: 8px 8px 6px 8px;
    /*  */
  }
  .nav-list,
  .nav-list-btn {
    display: none;
  }
  .nav-list {
    margin-top: 400px;
  }
  .nav-list .nav-items,
  .nav-list-btn .nav-items-btn {
    display: block;
    text-align: center;
    width: 700px;
  }
  .nav-list {
    margin-right: 200px;
  }
  .nav-items-btn {
    margin-top: 14px;
    margin-bottom: 15px;
  }
  .btn-2 {
    margin-right: 15px;
  }
  .dropdown {
    float: none;
  }
  .dropdown-content {
    margin-left: 400px;
  }
  .dropdown-content a {
    /* text-align: center; */
    margin-top: 2px;
  }
  .logo {
    width: 100%;
    padding-left: 30px;
    padding-top: 10px;
  }
  .active {
    display: block;
  }
  /* container */
  .video {
    margin-top: 10px;
    height: 300px;
    margin-left: 8px;
    margin-right: 8px;
  }
  /* container2 */
  .container {
    flex-direction: column;
    font-size: 16px;
    margin-right: 50px;
  }
  .video-1 {
    margin-top: 50px;
    margin-left: 50px;
  }
  .description {
    /* margin-left: 6px; */
    margin-top: 250px;
    margin-left: 50px;
  }
  /* container2 */
  .container2 {
    flex-direction: column;
    font-size: 16px;
    margin-right: 50px;
  }
  .description2 {
    margin-left: 50px;
  }
  .video2 {
    margin-left: 100px;
    margin-top: 10px;
  }
  .video-2 {
    margin-left: 100px;
    margin-top: 300px;
    height: 40px;
    width: 100%;
  }
  /* container3 */
  .container3 {
    flex-direction: column;
  }
  .video-3 {
    margin-left: 100px;
    margin-top: 280px;
    margin-right: 250px;
    height: 40px;
    width: 70%;
  }
  .description-3 {
    margin-left: 40px;
    margin-right: 38px;
    margin-top: 200px;
    /* font-size: 15px; */
  }
  /* container4 */
  .container-4 {
    flex-direction: column;
  }
  .video-4 {
    margin-left: 100px;
    margin-top: 50px;
    margin-right: 250px;
    height: 40px;
    width: 70%;
  }
  .description-4 {
    margin-left: 40px;
    margin-right: 38px;
    margin-top: 200px;
    /* font-size: 15px; */
  }
  /* btn-container */
  .btn-container,
  .text {
    margin-left: 150px;
  }
}