#null_mb {
  display: none;
}
@media (max-width: 1000px) {
  #nav {
    display: none;
  }

  #nav_mb {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    position: fixed;
    z-index: 99;
  }
  #nav_mb div:first-child {
    width: 300px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  #nav_mb_logo {
    height: 45px;
  }
  #burger {
    height: 25px;
  }

  #null_mb {
    display: block;
    height: 90px;
    width: 100%;
  }
  #nav_mb_text {
    width: 100%;
    height: auto;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: black;
    padding: 8px 0;
    transition: opacity 0.5s ease;
    opacity: 0;
  }
  #nav_mb_text h1 {
    font-size: 20px;
    line-height: 30px;
    color: white;
    text-align: center;
    margin: 8px 0px;
  }
  #homepage_container {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    width: 300px;
    height: auto;
    margin: auto;
    padding: 0;
    height: 100%;
    background-color: black;
  }
  .overlay {
    letter-spacing: 1.25pt;
    font-weight: 300;
    font-size: 18px;
  }
  .wrapper {
    width: 300px;
    height: 500px;
    overflow: hidden;
  }
  .swiper {
    width: 100%;
    height: 500px;
  }
  #slide_1 {
    background-image: url("../img/spruceMincho/homepage_img_mb.png");
  }
  #slide_2 {
    background-image: url("../img/teaPackaging/homepage_img_mb.png");
  }
  #slide_3 {
    background-image: url("../img/graduateProject/homepage_img_mb.png");
  }
  #slide_4 {
    background-image: url("../img/wolfType/homepage_img_mb.png");
  }
  #slide_5 {
    background-image: url("../img/logotype/homepage_img_mb_logotype01.png");
  }

  #slide_6 {
    background-image: url("../img/logotype/homepage_img_mb_logotype02.png");
  }

  #slide_7 {
    background-image: url("../img/artisanHan/homepage_img_mb.png");
  }

  #slide_8 {
    background-image: url("../img/foodApp/homepage_img_mb.png");
  }

  #slide_9 {
    background-image: url("../img/asyncAlbum/homepage_img_bg.png");
  }

  #slide_10 {
    background-image: url("../img/newrounded/homepage_img_mb.png");
  }

  #slide_11 {
    background-image: url("../img/spruceBlack/spruceBlack_homepage_mb.png");
  }

  h5 {
    font-family: "Barlow", sans-serif;
    font-weight: 300;
    font-style: normal;
    font-size: 12px;
    line-height: 1.25;
  }

  #footer_text h5 {
    color: white;
  }

  #footer_logo {
    height: 35px;
  }
}