play icon translucent.

HTML

<div class="parent">
  <button class="play"></button>
</div>

SCSS

.parent{
   background-color: #c6b9b9;
   height: 200px;
   width: 400px;
   .play {
    border: 0;
    background: transparent;
    box-sizing: border-box;
    width: 33px;
    height: 33px;
    border-color: transparent transparent transparent #202020;
    transition: 100ms all ease;
    cursor: pointer;
    border-style: solid;
    border-width: 37px 0 37px 60px;
    margin: 10% 50%;
    opacity:0.6;
    &:hover {
      border-color: transparent transparent transparent #404040;
    }
  } 
}