danbooru/app/javascript/src/styles/specific/z_responsive.scss

@import "../base/000_vars.scss";

#desktop-version-link {
  display: none;
}

#searchbox-redirect-link {
  display: none;
}

@media screen and (max-width: 660px) {
  #keyboard-shortcuts-link {
    display: none;
  }

  #desktop-version-link {
    display: inline;
  }

  #searchbox-redirect-link {
    display: inline;
  }

  #saved-searches-nav {
    display: none;
  }

  .fav-buttons button {
    font-size: 1.5em;
  }

  div#page aside#sidebar {
    padding: 5px;

    input#tags {
      width: 80%;
    }

    button[type=submit] {
      font-size: 1.2em;
      background-color: var(--responsive-sidebar-submit-button-background-color);
      height: 42px;
      padding: 2px 10px;
      border: var(--responsive-sidebar-submit-button-border);
    }
  }

  div#page {
    padding: 0 0.25vw;
    > div /* div#c-$controller */ {
      > div /* div#a-$action */ {
        display: flex;
        flex-direction: column;

        /* Move #sidebar below #content. */
        > aside#sidebar {
          font-size: 1.5em;
          float: none;
          width: auto;
          order: 2;
        }
      }
    }
  }

  header {
    position: relative;
  }

  #maintoggle {
    display: block;
    font-weight: bold;
    position: absolute;
    top: 2vw;
    right: 3vw;
    font-size: 2em;
  }

  /* Make the quick search box in the navbar full width. */
  header#top menu form input {
    width: auto;
  }

  h1 {
    display: none;
  }

  form {
    input[type=text] {
      vertical-align: top;
      font-size: 24pt;
      border: var(--responsive-form-input-border);
    }

    textarea {
      vertical-align: top;
      border: var(--responsive-form-input-border);
    }

    input[type=submit] {
      font-size: 160%;
    }

    input[type=submit].tiny {
      font-size: 120%;
      vertical-align: top;
    }
  }

  div#page section#content {
    margin: 0;
    padding: 0;
  }

  #comments h2 {
    display: none;
  }

  div.paginator {
    font-size: 24pt;
    font-weight: bold;
    text-align: center;
    width: 100%;
    padding: 0;
    margin: 0;
    margin-top: 1em;

    li {
      display: inline-block;
      margin: 0 0.25em;

      a, span {
        margin: 0;
        padding: 0;
        border: none;
      }

      &.current-page {
        text-align: center;
      }

      &.arrow:last-child {
        text-align: right;
      }

      &.numbered-page, &.more {
        display: none;
      }
    }
  }

  #posts #posts-container {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
  }

  article.post-preview {
    float: none;
    margin: 0; 
    text-align: center;
    vertical-align: middle;
    display: inline-block;

    a {
      margin: 0 auto;
    }

    img {
      width: 33.3vw;
      border: none !important;
    }

    &[data-tags~=animated]:before, &[data-file-ext=swf]:before, &[data-file-ext=webm]:before, &[data-file-ext=mp4]:before, &[data-file-ext=zip]:before {
      @include animated-icon;
    }

    &[data-has-sound=true]:before {
      @include sound-icon;
    }
  }

  .user-disable-cropped-false {
    article.post-preview {
      width: 33.3%;
      height: 33.3vw;
      overflow: hidden;
    }

    img {
      width: 33.3vw;
      height: 33.3vw;

      &.has-cropped-false {
        object-fit: cover;
      }
    }
  }

  img#image {
    margin-top: 5px;
  }

  #image-container {
    overflow: scroll;
  }

  div#options {
    margin-top: 10px;
    font-size: 24pt;
    font-weight: bold;
  }

  div#tags {
    margin-top: 30px;

    li {
      margin: 10px 0;
    }

    a.search-tag {
      font-size: 24pt;
      font-weight: bold;
    }
  }

  div#page {
    div.comments-for-post div.list-of-comments article.comment div.content {
      clear: both;
      margin: 0;
    }
  }

  #nav {
    font-size: 2em;
    line-height: 2em;
    display: none;
  }
  
  header#top menu.main {
    background-color: var(--responsive-menu-background-color);
    padding: 5px 10px;
  }
  
  h1 {
    display: block;
    font-size: 2em;
    margin: 1em 0 0 0;
  }
  
  h2 {
    font-size: 0.825em;
    margin: 1em 0 0 0;
  }
  
  header {
    text-align: center;
    line-height: 2em;
    h1 {
      display: inline; //Needed for menu button
    }
  }
  
  div#page {
    margin: 0;
  }
}

@media screen and (max-width: 440px) {
  input#expand-search {
    display: none;
  }

  body {
    width: 100%;
  }

  #post-sections {
    font-size: 1em;
  }
  
  div article.post-preview {
    overflow: visible;
  }
}