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design ux 
When thinking about design, I’ve noticed that websites are implementing animation and movement. An introductory step into implementing more movement is having an embedded video on a web page. I have modified the code below but wanted to share how to overlay text on a background video.
<header>
<div class="navbar">
<a class="navbar-brand" href="#">
<img src="img/example.png" width="40" height="40" class="d-inline-block align-top" alt="Logo">
</a>
</div>
<div class="vimeo-wrapper">
<iframe src="https://player.vimeo.com/video/VimeoNumber?background=1&autoplay=1&loop=1&byline=0&title=0"
frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
</div>
<div class="overlay">
<h1>Sample Text</h1>
<img src="img/image.png" class="img-thumbnail" alt="Image" />
<a href="#" class="btn btn-warning btn-lg">Learn today</a>
</div>
</header>
Below is the CSS to achieve a clean design and responsiveness.
/* Footer/Navbar: Video */
.vimeo-wrapper {
position: relative;
top: 0;
left: 0;
width: 100%;
height: 485px;
z-index: -1;
pointer-events: none;
overflow: hidden;
}
.vimeo-wrapper iframe {
width: 100vw;
height: 56.25vw; /* Given a 16:9 aspect ratio, 9/16*100 = 56.25 */
min-height: 100vh;
min-width: 177.77vh; /* Given a 16:9 aspect ratio, 16/9*100 = 177.77 */
position: relative;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
/* Footer/Navbar: Overlay */
.overlay {
background: rgba(0,0,0,0);
position: absolute;
top: 0; right: 0; bottom: 0; left: 0;
display: flex;
align-items: center;
justify-content: center;
z-index:1;
}
.overlay h1 {
color: #ffc800;
font-size: 55px;
}
.overlay .img-thumbnail {
max-width: 200px;
border: none;
background: none;
background-color: none;
border-color: none;
}
A future iteration of such a web page would implement visual transitions between sections like this website.