HTML
<link href='https://fonts.googleapis.com/css?family=Lato|Roboto:400,900' rel='stylesheet' type='text/css'>
<div class="container">
<a href="http://marcel-pirnay.be/" class="btn">
<svg width="277" height="62">
<defs>
<linearGradient id="grad1">
<stop offset="0%" stop-color="#FF8282"/>
<stop offset="100%" stop-color="#E178ED" />
</linearGradient>
</defs>
<rect x="5" y="5" rx="25" fill="none" stroke="url(#grad1)" width="266" height="50"></rect>
</svg>
<span>Hover Me!</span>
</a>
</div>
CSS
body {
width: 100%;
height: 100%;
position: relative;
overflow: hidden;
background: #333;
background-blend-mode: luminosity;
}
.container {
height: 100%;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.btn {
margin-top: calc(50% + 25px);
position: relative;
display: inline-block;
width: 277px;
height: 50px;
font-size: 1em;
font-weight: bold;
line-height: 60px;
text-align: center;
text-transform: uppercase;
background-color: transparent;
cursor: pointer;
text-decoration: none;
font-family: 'Roboto', sans-serif;
font-weight: 900;
font-size: 17px;
letter-spacing: 0.045em;
}
.btn svg {
position: absolute;
top: 0;
left: 0;
}
.btn svg rect {
stroke-width: 4;
stroke-dasharray: 353, 0;
stroke-dashoffset: 0;
-webkit-transition: all 600ms ease;
transition: all 600ms ease;
}
.btn span {
background: rgb(255, 130, 130);
background: -moz-linear-gradient(left, rgba(255, 130, 130, 1) 0%, rgba(225, 120, 237, 1) 100%);
background: -webkit-linear-gradient(left, rgba(255, 130, 130, 1) 0%, rgba(225, 120, 237, 1) 100%);
background: linear-gradient(to right, rgba(255, 130, 130, 1) 0%, rgba(225, 120, 237, 1) 100%);
filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#ff8282', endColorstr='#e178ed', GradientType=1);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}
.btn:hover svg rect {
stroke-width: 4;
stroke-dasharray: 196, 543;
stroke-dashoffset: 437;
}
