spee.ch/client/scss/_markdown.scss

.markdown-preview {

  margin: $tertiary-padding 0px;

  h1,
  h2,
  h3 {
    font-size: inherit;
    font-weight: inherit;
    margin: $tertiary-padding 0px;
  }

  h4, h5, h6 {
    font-size: $text-large;
    font-weight: 600;
    margin: $tertiary-padding 0px;
  }

  // Paragraphs
  p {
    font-size: 1.15rem;
    white-space: pre-line;
    margin: $tertiary-padding 0px;

    svg {
      width: 1rem;
      height: 1rem;

      margin-left: 0.2rem;
      position: relative;
      top: 1px;
    }
  }

  blockquote {
    background: $blockquote-background;
    padding: $tertiary-padding;
    min-width: 60%;
    margin: $tertiary-padding;
    p:first-child{
      margin-top: 0px;
    }
    p:last-child {
      margin-bottom: 0px;
    }

    div {
      display: none;
    }
  }

  // Strikethrough text
  del {
  }

  // Tables
  table {
    width: 100%;
    background-color: $base-color;
    border-spacing: 0;
    border: .5px solid $chrome-color;
    margin: $tertiary-padding 0px;

    tr {
      td,
      th,
      td:first-of-type,
      th:first-of-type,
      td:last-of-type,
      th:last-of-type {
        padding: $thin-padding $tertiary-padding;
        text-overflow: ellipsis;
      }
      td:last-of-type {
        text-align: right;
      }

      th {
        background: $chrome-color;
      }

    }
    tr:nth-child(even){
      background: $chrome-color;
    }
  }

  // Image
  img {
    margin-bottom: $tertiary-padding;
    margin-top: $tertiary-padding;
    padding: $secondary-padding;
    object-fit: scale-down;
    box-sizing: border-box;
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 90vw;
  }

  iframe {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 90vw;
    margin-top: $tertiary-padding 0px;
    margin-bottom: $tertiary-padding 0px;
  }

  // Horizontal Rule
  hr {
    width: 100%;
    height: 1px;

    background-color: $base-color;
    margin-bottom: 2rem;
    position: relative;
    top: 1rem;

    html[data-theme='dark'] & {
      background-color: rgba($base-color, 0.2);
    }
  }

  // Code
  pre {
    white-space: normal;
  }

  code {
    margin-bottom: $tertiary-padding;
    padding: $tertiary-padding;

    background-color: $subtle-border-color;
    color: $text-color;
    display: block;
    font-family: Consolas, 'Lucida Console', 'Source Sans', monospace;
  }

  a {
    color: $primary-color;
    display: inline;
  }

  // Lists
  ul,
  ol {
    margin-bottom: $thin-padding;

    > li {
      list-style-position: outside;
    }
  }

  ul {
    list-style: initial;
  }

  li {
    margin-left: $primary-padding;

    p {
      display: inline-block;
    }
  }
}