body {
    background-color: rgba(29, 83, 65);
    background-image: url(../img/back.png);
    background-size: cover;
    background-repeat: no-repeat;
    color: white;
    min-width: 800px;
    margin: 0;
}

.wrapper {
    display: grid;
    grid-template: auto 1fr auto / auto auto 1fr auto;
  }
  
  
  nav, aside, footer {
    text-align: center;
  }
  
  header {
    grid-column: 1 / 5;
    background-color: black;
  }

  header div {
    display: flex;
    width: 100%;
  }

  header div ul {
    height: 1.5rem;
    margin: 1rem auto;
    padding: 0;
    list-style: none;
    display: inline-block;
  }

  header div ul #box {
  width: 10rem;
  height: 20px;
  }

  header div ul li {
    float: left;
  }

  header div ul li a {
    margin: 0 0.5rem 0 0.5rem;
    padding: 0;
    color: #fff;
    font-weight: bold;
    text-align: left;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
  }

  header div ul li dl {
    position: absolute;
    margin: 2px 0 0 0;
    padding: 1rem 0 0 0;
    left: 0;
    width: 100%;
  }

  header div ul li dl div {
    background-color: rgba(235, 235, 235, 0.747);
  }

  header div ul li dl div #menu1s {
    left: 0;
    margin: 0 0 0 35%;
    background: none;
  }

  header div ul li dl div div {
    left: 0;
    margin: 0 0 0 50%;
    background: none;
  }
 
  header div ul li dl dd {
    float: left;
    margin: 0.5rem 0 0.5rem 0;
  }

  header div ul li dl dd a {
    color: black;
    font-weight: bold;
  }

  header div ul li dl {
    visibility: hidden;
    opacity: 0;
    transition: .2s ease-in-out;
  }

  header div ul li:hover > dl {
    visibility: visible;
    opacity: 1;
  }

  header #banner {
    width: 100%;
    height: 15rem;
    background-color: rgb(6, 47, 24);
    margin: 0;
    padding: 0;
  }

  header #banner img {
    margin: 0 10rem 0 10rem;
    width: 100%;
  }
  
  nav {
    grid-column: 1 / 2;
    background: linear-gradient( to top, rgba(29, 83, 65) 20%, rgb(6, 47, 24) 100%);
    padding: 5rem;
  }
  
  main {
    grid-column: 2 / 3;
    background-color:transparent;
}

main #box_main {
  margin-top: 3rem;
}

main #box_main div {
  margin-top: 3rem;
}

  main div .box_black {
      background-color: black;
      color: white;
      box-shadow: 0 6px 10px 0 rgba(0, 0, 0, 0.5);
      width: 100%;
  }

  main #box_main #box_menu {
      margin-top: 8rem;
  }

  main div #main_box1 {
    width: 30rem;
    margin: 2rem 0 2rem 0;
    padding: 1rem 3rem 1rem 2rem;
    font-size: x-large;
    font-weight: bolder;
    white-space: nowrap;
}

main div #main_box1 p span{
    font-size: x-large;
    font-weight: bold;
    margin: 0;
}

main div #main_box2 {
    width: 14rem;
    margin: 5rem 0 2rem 0;
    padding: 1rem 3rem 1rem 2rem;
    font-size: large;
    text-decoration: none;
}

main div #main_box3 {
    width: 10rem;
    margin: 1rem 0 2rem 0;
    padding: 1rem 3rem 1rem 2rem;
    font-size: large;
    text-decoration: none;
}
main div #main_box4 {
    width: 15rem;
    margin: 3rem 0 2rem 0;
    padding: 1rem 3rem 1rem 2rem;
    font-size: large;
    text-decoration: none;
}

main div #main_box5 {
  width: 17rem;
  margin: 3rem 0 2rem 0;
  padding: 1rem 3rem 1rem 2rem;
  font-size: large;
  text-decoration: none;
}

main div #main_box6 {
  width: 14rem;
  margin: 3rem 0 2rem 0;
  padding: 1rem 3rem 1rem 2rem;
  font-size: large;
  text-decoration: none;
}


  article {
    grid-column: 3 / 4;
background-color:transparent;
    width: 100%;
    word-break: keep-all;
  }

  article #tittle {
    margin: 1rem 2rem 0 0;
    float: right;
  }

  article #tittle h1{
    font-size: 4em;
    font-weight: normal;
    margin: 0;
  }

  article #tittle h2{
    text-align: right;
    font-weight: normal;
    margin: 0;
  }

  article .img_center {
    margin-top: 2rem;
    text-align: center;
}

article .img_right {
  text-align: right;
  margin: 0 4rem 4rem 0;
}

  article .top_button {
    text-align: right;
}

  article #text_box {
    margin: 15rem 0 0 0;
}

article #text_box .tittles {
  display: flex;
}

article #text_box .tittles img{
  margin-right: 1rem;
}

article #text_box #hwang {
  margin: 0;
  font-size: small;
}

article #text_box .info_links{
  margin: 0;
  padding: 0 0 0 5rem;
}

article div h1 {
  margin:0;
  padding: 0;
  }

article div img {
margin: 0;
}

  article div p {
      margin: 3rem 0 3rem;
      padding: 0 2rem 0 0;
  }
  
  aside {
    grid-column: 4 / 5;
    background: linear-gradient( to top, rgba(29, 83, 65) 20%, rgb(6, 47, 24) 100%);
    padding: 5rem;
  }
  
  footer {
    grid-column: 1 / 5;
    background-color: black;
    text-align: right;
    padding: 0 20% 0 0;
    position: fixed;
    bottom: 0;
    width: 100%;
  }
  
  body {
    padding: 0;
  }
  
  html, body {
    height: 100%;
  }
  
  * {
    box-sizing: border-box;
  }


  @media ( max-width: 1050px ) {

    nav {
      display: none;
    }

    aside {
      display: none;
    }

    header #banner img {
      width: 100%;
      margin: 0 auto;
    }

  }