<button>
    <span>Button</span>
  </button>










<footer>
  <p>
		Created with <i class="fa fa-heart"></i> by
		<a target="_blank" href="https://codepen.io/ahmadbassamemran/">Ahmad Emran</a>
    Follow me : 
      <a target="_blank"  href="https://www.instagram.com/ahmadbassamemran/"><i class="fab fa-instagram"></i></a>
    <a target="_blank"  href="https://www.linkedin.com/in/ahmademarn/"><i class="fab fa-linkedin"></i></a>
    <a target="_blank" href="https://codepen.io/ahmadbassamemran/"><i class="fab fa-codepen"></i></a> 
        <a target="_blank" href="https://dev.to/ahmadbassamemran"><i class="fab fa-dev"></i></a> 
             <a target="_blank" href="https://twitter.com/ahmadbassamemra"><i class="fab fa-twitter-square"></i></a> 
	</p>
</footer>

<div class="youtubeBtn">
  <a target="_blank" href="https://www.youtube.com/AhmadEmran?sub_confirmation=1">
      <span>Watch on YouTube</span>
  <i class="fab fa-youtube"></i>
    </a>

</div> 

  *{
  box-sizing: border-box;
}
body{
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #ced6e0;
  width: 100vw;
  height: 100vh;
  font-family: 'Lato';
}
button{
  border-style: none;
  background-color: #ff4757;
  outline: none;
  cursor: pointer;
  overflow: hidden;
  padding: 0px;
  margin: 0px;
  border: 1px solid #ff6b81;
  border-radius: 6px;
  transform:scale(1);
  transition: all .5s ease-in-out;
}
button:hover{
  transform:scale(1.1);
  transition: all .5s ease-in-out;
}
button span{
  position: relative;
  padding: 12px 20px;
  display: block;
  font-size: 16px;
  letter-spacing: 1px;
  color: #ffffff;
  z-index: 2;
}
button span::before{
  content: "";
  position: absolute;
  width: 0%;
  height: 50px;
  background-color: #ff6b81;
  right: 0px;
  top: 0px;
  z-index: -1;
  transform-origin: right;
  transition: all .5s ease-in-out;
}
button:hover span::before{
  width: 100%;
  transform-origin: left;
  left: 0px;
  right:auto;
  transition: all .5s ease-in-out;
}









/*  footer   */
footer {
    background-color: #222;
    color: #fff;
    font-size: 14px;
    bottom: 0;
    position: fixed;
    left: 0;
    right: 0;
    text-align: center;
    z-index: 999;
}

footer p {
    margin: 10px 0;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida  Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
footer .fa-heart{
    color: red;
}
footer .fa-dev{
    color: #fff;
}
footer .fa-twitter-square{
  color:#1da0f1;
}
footer .fa-instagram{
  color: #f0007c;
}
fotter .fa-linkedin{
  color:#0073b1;
}
footer .fa-codepen{
  color:#fff
}
footer a {
    color: #3c97bf;
    text-decoration: none;
  margin-right:5px;
}
.youtubeBtn{
    position: fixed;
    left: 50%;
  transform:translatex(-50%);
    bottom: 45px;
    cursor: pointer;
    transition: all .3s;
    vertical-align: middle;
    text-align: center;
    display: inline-block;
}
.youtubeBtn i{
   font-size:20px;
  float:left;
}
.youtubeBtn a{
    color:#ff0000;
    animation: youtubeAnim 1000ms linear infinite;
  float:right;
}
.youtubeBtn a:hover{
  color:#c9110f;
  transition:all .3s ease-in-out;
  text-shadow: none;
}
.youtubeBtn i:active{
  transform:scale(.9);
  transition:all .3s ease-in-out;
}
.youtubeBtn span{
    font-family: 'Lato';
    font-weight: normal;
    color: #000;
    display: block;
    font-size: 12px;
    float: right;
    line-height: 20px;
    padding-left: 5px;
  
}

@keyframes youtubeAnim{
  0%,100%{
    color:#c9110f;
  }
  50%{
    color:#ff0000;
  }
}
/* footer  */