Eine Überschrift hier h2

– Ich bin ein Blindtext
– Und zwar schon so lange ich denken kann
– und daher ergebe ich keinerlei Sinn

custom class to the color-section: html5-video

markup of code-block element

<video autoplay loop muted playsinline class="responsive-video">
    <source src="https://webers-testseite.de/wp-content/uploads/Time-Lapse.mp4">
    Dein Browser unterstützt das Video-Tag nicht.
</video>

css and layout of this page

#top .html5-video .responsive-video {
  width: 100%;
  height: auto;
  display: block;
}

.responsive #top #wrap_all .html5-video .container {
  max-width: 100% !important;
  width: 100%;
  padding: 0;
}

#top .html5-video .content {
  padding: 0;
}

#top .html5-video .overlay {
  transition: top 3s ease
}

#top .html5-video .overlay {
  position: absolute;
  width: auto !important;
  top: calc(100% - 200px) !important;
  right: 50px;
  padding: 15px;
  margin: 0 !important;
  /* === if you do not like to have background and blur remove this === */
  border-radius: 20px;
  background-color: rgba(255,255,255,0.1);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

@media only screen and (min-width: 1650px) {
  #top .html5-video .overlay {
    top: calc(100% - 450px) !important;
  }
}


#top .html5-video .overlay p {
  margin-bottom: 0 !important;
}


@media only screen and (max-width: 549px) {
  #top .html5-video .overlay {
    padding: 10px;
  }
  #top .html5-video .overlay .av-special-heading-tag,
  #top .html5-video .overlay p {
    font-size-adjust:  cap-height 0.5 !important;
    line-height: 1.3em !important;
    margin: 0
  }
  #top .html5-video .overlay {
    top: calc(100% - 150px) !important;
  }
}

width and height settings of overlay are always in the aspect ratio of your image.

we had to set here the width to important – because on responsive case the column ( here the 2/5 column ) will go to 100% width.

btw: you can use poster option and different video formats:

<video controls poster="/images/w3html5.gif">
  <source src="movie.mp4" type="video/mp4">
  <source src="movie.ogg" type="video/ogg">
  Your browser does not support the video tag.
</video>