style.css

body {
  font-family: "Cocogoose", sans-serif;
  padding: 0;
  margin: 0;
}

header {
  height: auto;
  position: sticky;
  z-index: 1;
  top: 0;
}

.upper-nav {
  display: flex;
  color: white;
  background-color: #272a31;
  height: 30px;
  justify-content: center;
}

.upper-nav i,
.upper-nav span {
  margin-top: 8px;
  margin-right: 18px;
}

.lower-nav {
  display: flex;
  justify-content: space-between;
  margin-right: 40px;
  height: 80px;
  background-color: #fff;
  width: 100%;
}

.nav-content {
  display: flex;
  justify-content: flex-end;
}

.nav-img {
  margin: 10px;
}

.lower-nav img {
  width: 25%;
  height: auto;
}

.nav-a li {
  display: inline;
}

.program-menu a {
  color: white;
}

.speakers1 a {
  color: #ec5242;
  text-decoration: none;
}

.nav-a li a {
  padding-left: 15px;
  color: #272a31;
  text-decoration: none;
  font-size: 25px;
  margin-right: 1rem;
}

.speakers1 img {
  width: 45%;
  height: 200px;
  float: left;
  margin-right: 1rem;
}

.footer-left img {
  width: 90px;
  height: auto;
  float: left;
  margin: 1rem;
}

.mobile-nav {
  background-color: #fff;
  width: 100%;
  height: auto;
  position: sticky;
  top: 0;
  z-index: 1;
}

.mobile-nav label,
#nav,
.mobile-nav ul,
.mobile-nav img {
  display: none;
}

.mobile-nav ul {
  list-style-type: none;
  margin: 0;
  padding-top: 1rem;
  padding-bottom: 2rem;
}

.mobile-nav ul li {
  display: inline-block;
  padding: 10px;
  box-sizing: border-box;
}

.mobile-nav img {
  padding-top: 5px;
  float: right;
  width: 60px;
  height: 60px;
  padding-bottom: 2rem;
}

.mobile-nav ul li a {
  color: #272a31;
  text-decoration: none;
}

.main {
  height: 800px;
  margin-top: 0;
  background-image: url("images/laptop.jpg");
  background-size: cover;
  background-repeat: no-repeat;
}

.main-content {
  padding-top: 7rem;
  margin-left: 130px;
  width: 70%;
  color: #ec5242;
}

.main-content p {
  font-size: 40px;
}

.main-content h1 {
  font-family: "Cocogoose", sans-serif;
  font-size: 60px;
  font-weight: bolder;
}

.main-container {
  margin-left: 130px;
  font-size: 20px;
  padding: 30px;
  width: 50%;
  border: 2px solid white;
  background-color: #d3d3d3;
}

.main-date {
  color: #d3d3d3;
  margin-top: 20px;
  margin-left: 130px;
  font-weight: 900;
  font-size: 30px;
}

.main-date p {
  font-weight: normal;
}

.program-menu {
  background-color: #272932;
}

.program-menu h2 {
  font-weight: bolder;
  font-size: 40px;
  padding-top: 100px;
  color: white;
  text-align: center;
  margin: 0;
}

.program-menu p {
  text-align: center;
  margin-bottom: 0;
  padding-bottom: 50px;
}

hr {
  border-bottom: 2px solid #ec5242;
  width: 8%;
}

.main-program {
  display: flex;
  height: 400px;
  width: 100%;
  flex-direction: row;
  align-items: center;
}

.main-program i {
  font-size: 40px;
  color: white;
}

.card h3 {
  color: #af4b30;
}

.card p {
  color: white;
}

.main-program::before {
  content: "";
  display: table;
  clear: both;
}

.main-program11 {
  margin-left: 150px;
}

.main-program12 {
  margin-right: 150px;
}

.card {
  height: 250px;
  padding: 30px;
  text-align: center;
  margin-left: 5px;
  margin-right: 5px;
  background-color: #505050;
}

.more {
  display: none;
}

.parallax {
  background-image: url("https://cdn0.tnwcdn.com/wp-content/blogs.dir/1/files/2019/12/sale_24045_primary_image_wide-796x398.jpg");
  height: 200px;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.8;
}

.parallax h2,
.partner-icons h2 {
  color: white;
  font-size: 60px;
  font-weight: bolder;
  text-align: center;
  margin-top: 0;
  margin-bottom: 0;
  padding-top: 60px;
}

.parallax1 h1 {
  color: #272a31;
  font-size: 60px;
  font-weight: bolder;
  text-align: center;
  margin-top: 0;
  margin-bottom: 0;
  padding-top: 60px;
}

.speakers {
  display: grid;
  grid-template-columns: auto auto;
  margin-right: 150px;
  margin-left: 150px;
  margin-bottom: 50px;
}

.speakers1 {
  margin-top: 50px;
  margin-bottom: 50px;
  margin-right: 2rem;
  color: #272a31;
}

.speakers1 h4 {
  font-weight: bold;
  font-size: 24px;
  font-family: "Cocogoose", sans-serif;
}

.speakers1 p {
  font-family: "Lato", sans-serif;
  font-size: 15px;
}

.parallax1 {
  background-image: url("images/partner.jpg");
  height: 220px;
  width: 100%;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.8;
}

.partner-icons {
  height: 300px;
  font-size: 70px;
  color: white;
  text-align: center;
  background-color: #414141;
}

.partner-icons i {
  padding-left: 60px;
}

footer {
  height: 100px;
}

.footer-contents {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.footer-left {
  display: flex;
  justify-content: center;
  width: 100%;
  align-items: center;
}

.footer-left p {
  font-size: 25px;
  font-weight: bolder;
}

.footer-right {
  font-size: 15px;
}

.gibberish {
  font-weight: bold;
}

@media (min-width: 768px) and (max-width: 1430px) {
  div.main-content {
    margin: 0;
    width: 100%;
  }

  div.main-content p,
  div.main-content h1 {
    padding-left: 3rem;
  }

  div.main-content h1 {
    font-size: 38px;
  }

  div.main-date {
    margin-left: 3rem;
  }

  div.main-container {
    margin-left: 3rem;
    text-align: center;
  }

  div.main-program {
    display: flex;
    flex-direction: row;
    margin: 0;
  }

  div.main-program11 {
    margin-left: 1rem;
  }

  div.main-program12 {
    margin-right: 1rem;
  }

  div.speakers {
    display: grid;
    grid-template-columns: auto auto;
    margin: 0;
    padding: 10px;
  }

  div.speakers1 {
    width: 100%;
  }

  footer {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
  }
}

@media (max-width: 768px) {
  header {
    display: none;
  }

  body {
    overflow-x: hidden;
  }

  section.main {
    margin-top: 2rem;
    height: 600px;
  }

  .mobile-nav label {
    display: inline-block;
    color: #fff;
    background: #272a31;
    font-style: normal;
    font-size: 2.2em;
    padding: 10px;
  }

  div.speakers1 img {
    width: 200px;
    height: 200px;
    float: left;
  }

  nav.mobile-nav img {
    display: block;
  }

  nav.mobile-nav ul li {
    display: block;
  }

  nav.mobile-nav ul {
    display: none;
  }

  nav.mobile-nav input:checked ~ ul {
    display: block;
  }

  div.main-content {
    margin-left: 5px;
    width: 90%;
  }

  div.main-content p {
    font-size: 20px;
  }

  div.main-content h1 {
    font-size: 32px;

    /* line-height: 2.5rem; */
  }

  div.main-container {
    font-size: 15px;
    width: 80%;
    margin: 5px;
  }

  div.main-date {
    margin-left: 5px;
    font-size: 20px;
  }

  div.main-program {
    width: 100%;
    height: auto;
    display: grid;
    grid-template-rows: auto auto auto auto;
  }

  div.card {
    display: flex;
    margin-left: 1rem;
    margin-right: 1rem;
    margin-bottom: 1rem;
    height: auto;
  }

  div.main-program11,
  div.main-program12 {
    width: 100%;
    margin-left: 0;
  }

  div.speakers {
    display: flex;
    flex-direction: column;
    margin-left: 1rem;
    margin-right: 0;
  }

  div.speakers1 {
    display: flex;
    margin-bottom: 1rem;
  }

  div.speaker-content {
    width: 100%;
    height: auto;
    margin-left: 1rem;
    margin-top: 0;
  }

  div.card i {
    margin-top: 1rem;
    margin-right: 1rem;
  }

  div.card h3 {
    margin-right: 1rem;
  }

  div.speaker-content h4 {
    margin-top: 1rem;
    font-size: 30px;
  }

  div.parallax h1 {
    font-size: 20px;
  }

  div.more {
    display: block !important;
    width: 100%;
    font-family: Lato, Condensed, Arial, Helvetica, sans-serif;
    text-align: center;
    font-size: 40px;
    border: 1px solid #d3d3d3;
    border-radius: 10px;
    margin-bottom: 1rem;
  }

  div.parallax h2 {
    font-size: 35px;
  }

  div.parallax1,
  div.partner-icons {
    display: none;
  }

  footer {
    display: flex;
    justify-content: center;
    font-size: 12px;
  }

  div.footer-left {
    width: 100%;
  }

  div.footer-right {
    width: 100%;
  }

  div.footer-left p {
    font-size: 15px;
  }
}