title: Text shows in header instead of new section BS4
body: <p>I have a problem with my one-page website. My new text section shows in my header video. instead in my new section. I want it after video header. What am I doing wrong?</p>
  
  <p>My HTML</p>
  
  <pre><code>&lt;header&gt;
  &lt;div class="container"&gt;
    &lt;div class="bg-wrap"&gt;
  
        &lt;video poster="poster.png" autoplay="true" loop muted&gt;
        &lt;source src="img/video.mp4" type="video/mp4"&gt;
        &lt;source src="img/video.webm" type="video/webm"&gt;
      &lt;/video&gt;
  
      &lt;div class="header-text"&gt;
        &lt;h1&gt;Elektro Sikora&lt;/h1&gt;
        &lt;p&gt;Informační portál Elektro Sikora Český Těšín&lt;/p&gt;
      &lt;/div&gt;
  
      &lt;div id="scroll"&gt;
        &lt;div class="round"&gt;
          &lt;div class="wheel"&gt;&lt;/div&gt;
        &lt;/div&gt;
        &lt;div class="scrolling"&gt;
          &lt;span class="arrow"&gt;&lt;/span&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/div&gt;
    &lt;/div&gt;
  &lt;/header&gt;
  
    &lt;section id="content-space"&gt;
      &lt;div class="container"&gt;
        &lt;div class="row"&gt;
          &lt;div class="col-lg-12 text-center"&gt;
            &lt;p&gt;
              Kompletní nabídka produktů, které nabízíme. Najdete zde od elektroniky až po zdravou výživu.
            &lt;/p&gt;
          &lt;/div&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/section&gt;
  </code></pre>
  
  <p>My CSS</p>
  
  <pre><code>/* Nav */
  .navbar {
    padding: 1,2rem;
  }
  /* Video */
  .bg-wrap {
    position: fixed;
    z-index: -1000;
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;
    left: 0;
  }
  video {
    top: 70px;
    left: 0;
    min-height: 100%;
    min-width: 100%;
  }
  .header-text {
    position: absolute;
    width: 100%;
    min-height: 100%;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.4);
  }
  .header-text h1 {
    text-align: center;
    font-size: 65px;
    text-transform: uppercase;
    font-weight: 300;
    color: #fff;
    padding-top: 15%;
    margin-bottom: 10px;
  }
  .header-text p {
    text-align: center;
    font-size: 20px;
    letter-spacing: 3px;
    color: #fff;
  }
  #scroll {
    cursor: pointer;
    display: block;
    position: absolute;
    bottom: 50px;
    left: 50%;
    z-index: 1000;
  }
  .round {
    height: 21px;
    width: 14px;
    border-radius: 10px;
    transform: none;
    border: 2px solid #fff;
    top: 170px;
  }
  .wheel {
    animation-delay: 0s;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-name: scrolling;
    animation-play-state: running;
    animation-timing-function: linear;
    background: #fff none repeat scroll 0 0;
    border-radius: 10px;
    height: 3px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    top: 4px;
    width: 2px;
  }
  .scrolling span {
      display: block;
      width: 5px;
      height: 5px;
      -ms-transform: rotate(45deg);
      -o-transform: rotate(45deg);
      -moz-transform: rotate(45deg);
      -webkit-transform: rotate(45deg);
      transform: rotate(45deg);
      border-right: 2px solid #fff;
      border-bottom: 2px solid #fff;
      margin: 3px 0 3px 5px;
  }
  .arrow {
      margin-top: 6px;
  }
  header {
    height: 100vh;
    overflow: hidden;
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Jzm3k.jpg" rel="nofollow noreferrer">Nav dissapear and scrollable video</a></p>