/* Light YouTube Embeds by @labnol */
/* Web: http://labnol.org/?p=27941 */
document.addEventListener(“DOMContentLoaded”,
function() {
var div, n,
v = document.getElementsByClassName(“youtube-player”);
for (n = 0; n < v.length; n++) {
div = document.createElement("div");
div.setAttribute("data-id", v[n].dataset.id);
div.innerHTML = labnolThumb(v[n].dataset.id);
div.onclick = labnolIframe;
v[n].appendChild(div);
}
});
function labnolThumb(id) {
var thumb = '

‘,
play = ‘
‘;
return thumb.replace(“ID”, id) + play;
}
function labnolIframe() {
var iframe = document.createElement(“iframe”);
var embed = “https://www.youtube.com/embed/ID?autoplay=1&modestbranding=1&rel=0”;
/* We set autoplay, removed YouTube logo, and no related end videos */
iframe.setAttribute(“src”, embed.replace(“ID”, this.dataset.id));
iframe.setAttribute(“frameborder”, “0”);
iframe.setAttribute(“allowfullscreen”, “1”);
this.parentNode.replaceChild(iframe, this);
}
.youtube-player {
position: relative;
padding-bottom: 56.23%;
/* Use 75% for 4:3 videos */
height: 0;
overflow: hidden;
max-width: 100%;
background: #000;
margin: 5px;
}
.youtube-player iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 100;
background: transparent;
}
.youtube-player img {
bottom: 0;
display: block;
left: 0;
margin: auto;
max-width: 100%;
width: 100%;
position: absolute;
right: 0;
top: 0;
border: none;
height: auto;
cursor: pointer;
-webkit-transition: .4s all;
-moz-transition: .4s all;
transition: .4s all;
}
.youtube-player img:hover {
-webkit-filter: brightness(75%);
}
.youtube-player .play {
rotate: 180deg;
height: 128px;
width: 128px;
left: 50%;
top: 50%;
margin-left: -64px;
margin-top: -64px;
position: absolute;
background: url(“//upload.wikimedia.org/wikipedia/commons/1/14/Glossy_3d_blue_arrowhead_left.png”) no-repeat;
cursor: pointer;
background-size: 100%;
}
Social proof is one of the most persuasive tools for marketing. When potential customers can read about another customer’s experience in their own words, it greatly increases trust in our products or services.
Having a system to automatically ask for testimonials can provide us with a steady stream of social proof that can be used throughout our marketing efforts.