.markdown-body img {
  width: 640px;
}

.markdown-body h1 {
  font-size: 2em;
  font-weight: 700;
  border-bottom: solid 2px #FF9800;
}


.markdown-body h2 {
  font-size: 1.5em;
  font-weight: 700;
}

.markdown-body h3 {
  font-size: 1.25em;
  font-weight: 700;
}

.markdown-body ol {
  padding: 0px 0px 0px 24px;
}

.markdown-body h1,h2,h3 {
  padding: 16px 0px;
}

.markdown-body iframe {
  width: 640px;
}

.markdown-body a {
  word-break: break-all;
}

@media screen and (max-width:768px) {
  .markdown-body img {
    width: 100%;
  }

  .markdown-body h1,h2,h3 {
    padding: 8px 0px;
  }

  .markdown-body h1 {
    font-size: 1.5em;
    font-weight: 700;
  }

  .markdown-body iframe {
    width: 100%;
  }
  
  .markdown-body h2 {
    font-size: 1.3em;
    font-weight: 700;
  }
  
  .markdown-body h3 {
    font-size: 1.2em;
    font-weight: 700;
  }
}