Underline animation

index.html

<a href="" class="underline">
    <span>Link here</span><svg viewBox="0 0 13 20"><polyline points="0.5 19.5 3 19.5 12.5 10 3 0.5" /></svg>
</a>

<a href="" class="underline">
    <span>Link here with multiple lines</span><svg viewBox="0 0 13 20"><polyline points="0.5 19.5 3 19.5 12.5 10 3 0.5" /></svg>
</a>

<!-- dribbble - twitter -->
<a class="dribbble" href="https://dribbble.com/ai" target="_blank"><img src="https://cdn.dribbble.com/assets/dribbble-ball-mark-2bd45f09c2fb58dbbfb44766d5d1d07c5a12972d602ef8b32204d28fa3dda554.svg" alt=""></a>
<a class="twitter" target="_blank" href="https://twitter.com/aaroniker_me"><svg xmlns="http://www.w3.org/2000/svg" width="72" height="72" viewBox="0 0 72 72"><path d="M67.812 16.141a26.246 26.246 0 0 1-7.519 2.06 13.134 13.134 0 0 0 5.756-7.244 26.127 26.127 0 0 1-8.313 3.176A13.075 13.075 0 0 0 48.182 10c-7.229 0-13.092 5.861-13.092 13.093 0 1.026.118 2.021.338 2.981-10.885-.548-20.528-5.757-26.987-13.679a13.048 13.048 0 0 0-1.771 6.581c0 4.542 2.312 8.551 5.824 10.898a13.048 13.048 0 0 1-5.93-1.638c-.002.055-.002.11-.002.162 0 6.345 4.513 11.638 10.504 12.84a13.177 13.177 0 0 1-3.449.457c-.846 0-1.667-.078-2.465-.231 1.667 5.2 6.499 8.986 12.23 9.09a26.276 26.276 0 0 1-16.26 5.606A26.21 26.21 0 0 1 4 55.976a37.036 37.036 0 0 0 20.067 5.882c24.083 0 37.251-19.949 37.251-37.249 0-.566-.014-1.134-.039-1.694a26.597 26.597 0 0 0 6.533-6.774z"></path></svg></a>

style.scss

.underline {
    --line: #646B8C;
    --color: #2B3044;
    text-decoration: none;
    color: var(--color);
    position: relative;
    span {
        background-image: linear-gradient(0deg, var(--line) 0%, var(--line) 100%);
        background-position: 100% 100%;
        background-repeat: no-repeat;
        background-size: var(--background-size, 100%) 1px;
        transition: background-size .2s linear var(--background-delay, .15s);
        font-size: 16px;
        line-height: 20px;
        transform: translateZ(0);
    }
    svg {
        vertical-align: top;
        display: inline;
        line-height: 1;
        width: 13px;
        height: 20px;
        position: relative;
        left: -2px;
        fill: none;
        stroke-linecap: round;
        stroke-linejoin: round;
        stroke-width: 1px;
        stroke: var(--line);
        stroke-dasharray: 7.95 30;
        stroke-dashoffset: var(--stroke-dashoffset, 46);
        transition: stroke-dashoffset var(--stroke-duration, .15s) var(--stroke-easing, linear) var(--stroke-delay, 0s);
    }
    &:hover {
        --background-size: 0%;
        --background-delay: 0s;
        --stroke-dashoffset: 26;
        --stroke-duration: .3s;
        --stroke-easing: cubic-bezier(.3, 1.5, .5, 1);
        --stroke-delay: .195s;
    }
}

html {
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

* {
    box-sizing: inherit;
    &:before,
    &:after {
        box-sizing: inherit;
    }
}

// Center & dribbble
body {
    min-height: 100vh;
    display: flex;
    font-family: 'Inter', Arial;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background: #F6F8FF;
    .underline {
        width: 140px;
        margin: 16px 0;
    }
    .dribbble {
        position: fixed;
        display: block;
        right: 20px;
        bottom: 20px;
        img {
            display: block;
            height: 28px;
        }
    }
    .twitter {
        position: fixed;
        display: block;
        right: 64px;
        bottom: 14px;
        svg {
            width: 32px;
            height: 32px;
            fill: #1da1f2;
        }
    }
}

styles

<link href="https://fonts.googleapis.com/css?family=Inter:400,500,600,700&amp;display=swap" rel="stylesheet" />

underline-animation.markdown

Underline animation

A Pen by Aaron Iker on CodePen.

License.

DEMO https://codemyui.com/underline-to-arrow-multiline-link-hover-effect/