<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<a class="btn fill" href="#">Learn more</a>
</div>
</div>
@import url('https://fonts.googleapis.com/css?family=Old+Standard+TT:400|Muli:300,700');
body{
background: #000;
display: flex;
justify-content: center;
height: 100vh;
width: 100vw;
align-items: center;
font-family: 'Muli', sans-serif;
}
.btn.fill {
background: #d5cdcd;
}
.btn {
position: relative;
display: inline-block;
color: #282828;
border: none;
border-radius: 0;
outline: 0;
padding: 1.25rem 2rem;
font-family: inherit;
font-size: 0.6875rem;
font-weight: 700;
text-align: center;
text-transform: uppercase;
cursor: pointer;
-webkit-transform: translate(0);
transform: translate(0);
letter-spacing: 0.1875rem;
}
.btn::before {
position: absolute;
content: "";
transition: -webkit-transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1);
transition: transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1);
transition: transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1), -webkit-transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1);
z-index: -1;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: #fff;
-webkit-transform: scaleX(0);
transform: scaleX(0);
-webkit-transform-origin: 100%;
transform-origin: 100%;
}
a {
transition: color 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
color: #d5cdcd;
text-decoration: none;
}
.btn:hover {
color: #282828;
}
.btn.fill {
background: #d5cdcd;
}
a:hover {
color: #fff;
}
.btn:hover::before {
transition: -webkit-transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1);
transition: transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1);
transition: transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1), -webkit-transform 0.65s cubic-bezier(0.165, 0.84, 0.44, 1);
-webkit-transform: scaleX(1);
transform: scaleX(1);
-webkit-transform-origin: 0%;
transform-origin: 0%;
}