HTMLify

@import url("https://fonts.googleapis.com/css?family=Raleway:400,400i,700");

body {
    display: flex;
    height: 100vh;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: #111;
}

ul {
    display: flex;
    flex-direction: column;
    list-style-type: none;
}

ul li {
    padding: 6px 0;
}

ul li a {
    --fill: #85ff7d;
    position: relative;
    display: block;
    padding: 4px 0;
    font: 700 2rem Raleway, sans-serif;
    text-decoration: none;
    text-transform: uppercase;
    -webkit-text-stroke: 2px var(--fill);
    background: linear-gradient(var(--fill) 0 100%) left/0 no-repeat;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    transition: 0.5s linear;
}

ul li a:hover {
    background-size: 100%;
}