Add excerpt to post

Automation: 25 first words in post (include words in header, so careful). You can change number of words by setting the FrontMatter variable truncate_words.

By hand (Recommended): Let excerpt is in <!--excerpt.start--> and <!--excerpt.end-->

Solution source: Detail

Custom FrontMatter variables in layout

Use layout.my_var instead of page.my_var because YAML FrontMatter var weren’t read inside a layout file. Detail

Change theme color (global)

Edit color variable in minima.scss

Embed a Youtube video

Open a Youtube’s video. Click Share -> Embed, copy HTML code and paste it directly in markdown.

Example:

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/lFUlliTQEfk?rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>

Reponsive video

To fit a video size to screen, add a class="video" in tag iframe. After that, put all of it in a div with class="youtube-video".

Example:

<div class="youtube-video">
  <iframe class="video" width="560" height="315" src="https://www.youtube-nocookie.com/embed/lFUlliTQEfk?rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
</div>

Result: