input[type=radio] {
  display: none;
}

label[for=menu-open] {
  display: flex;
  flex-direction: column;
  padding: 10px;
  position: fixed;
}
label[for=menu-open] span {
  margin-bottom: 5px;
  height: 5px;
  background: #333;
  width: 25px;
  border-radius: 3px;
}

.menu-close {
  display: flex;
  flex-direction: column;
  padding: 10px;
}
.menu-close span {
  margin-bottom: 5px;
  height: 5px;
  background: #000;
  width: 30px;
  border-radius: 3px;
}
.menu-close span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
.menu-close span:nth-child(2) {
  transform: rotate(-45deg);
}

.overlay {
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0);
  /* position: fixed; */
  z-index: -10;
  left: 0;
  transform: translateY(0%);
  transition: 0.2s ease-in;
}

#menu-open ~ label ~ .side-menu {
  display: flex;
  position: fixed;
  top: 0;
  height: 100%;
  transform: translateX(-100%);
  width: 25%;
  background: #ffffff;
  transition: 0.2s linear;
  z-index: 10;
}

#menu-open:checked ~ .overlay {
  z-index: 10;
  background: rgba(0, 0, 0, 0.4);
}

#menu-open:checked ~ label ~ .side-menu {
  transform: translateX(0%);
  box-shadow: 0 1px 5px #333;
}

.side-menu {
  flex-direction: column;
}
.side-menu nav {
  display: flex;
  flex-direction: row;
  width: 100%;
}
.side-menu nav ul {
  display: flex;
  flex-direction: column;
  width: 100%;
  margin: 0;
  padding: 0;
}
.side-menu nav ul li {
  list-style-type: none;
  height: 70px;
  display: flex;
  background: #e4e4e4;
  border-bottom: 1px solid #ffffff;
}
.side-menu nav ul li a {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  text-decoration: none;
}
.side-menu nav ul li a:hover {
  background-color: #2980b9;
}

.head {
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 45vh;
  background: #27ae60;
}
.head h1 {
  font-size: 3em;
  color: #FFF;
}
.head h2 {
  color: #FFF;
}

.content {
  width: 60%;
  margin: 0 auto;
  text-align: justify;
}
.content p:nth-child(1) img {
  float: left;
  margin: 20px 10px 10px 0;
}
.content p:nth-child(2) img {
  float: right;
  margin: 10px 0px 10px 10px;
}
.content p:nth-child(3) img {
  float: left;
  margin: 10px 10px 10px 0;
}

@media screen and (max-width: 600px) {
  #menu-open ~ label ~ .side-menu {
    width: 75%;
  }

  .head h1 {
    font-size: 2em;
  }

  .content {
    width: 80%;
  }
}
.Introduction .fourblock {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}
.banner {
  padding-top: 200px;
}

.banner .bannerumg {
  text-align: center;
}

.banner .bannerumg img {
  width: 90vw;
  max-width: 750px;
}

.banner .logo {
  text-align: center;
}

.banner .logo img {
  width: 90vw;
  max-width: 446px;
}
.videosection .container {
  margin-top: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 90vw;
  margin: auto;
}

.videosection .videoplace {
  max-width: 810px;
  margin: 0 3vw;
}

.videosection .videoplace video {
  width: 100%;
}

.videosection img {
  width: 7%;
  max-width: 97px;
}