<div class="wrapper">
    <a>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        Huzaifa
    </a>
    <a>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        Huzaifa
    </a>
    <a>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        Huzaifa
    </a>
    <a>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        Huzaifa
    </a>
</div>
* {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    box-sizing: border-box;
    text-decoration: none;
}

.wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #000;
}

a {
    position: relative;
    display: inline-block;
    padding: 25px 30px;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: #03e9f4;
    font-size: 1.2rem;
    font-weight: bold;
    transition: 0.5s;
    overflow: hidden;
    margin-right: 70px;
    cursor: pointer;
}

a:hover {
    background: #03e9f4;
    color: #050801;
    box-shadow: 0 0 5px #03e9f4, 0 0 25px #03e9f4, 0 0 50px #03e9f4,
        0 0 200px #03e9f4;
    -webkit-box-reflect: below 1px linear-gradient(transparent, #0005);
}

a:first-child {
    filter: hue-rotate(225deg);
}

a:nth-child(3) {
    filter: hue-rotate(150deg);
}

a:last-child {
    filter: hue-rotate(300deg);
}

a span {
    position: absolute;
    display: block;
}

a span:nth-child(1) {
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #03e9f4);
    animation: one 1s infinite;
}

@keyframes one {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

a span:nth-child(2) {
    top: 100%;
    right: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent, #03e9f4);
    animation: two 1s infinite;
    animation-delay: 0.25s;
}

@keyframes two {
    0% {
        top: -100%;
    }
    100% {
        top: 100%;
    }
}

a span:nth-child(3) {
    bottom: 0;
    right: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(270deg, transparent, #03e9f4);
    animation: three 1s infinite;
    animation-delay: 0.5s;
}

@keyframes three {
    0% {
        right: -100%;
    }
    100% {
        right: 100%;
    }
}

a span:nth-child(4) {
    bottom: -100%;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(360deg, transparent, #03e9f4);
    animation: four 1s infinite;
    animation-delay: 0.75s;
}

@keyframes four {
    0% {
        bottom: -100%;
    }
    100% {
        bottom: 100%;
    }
}

External CSS

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External JavaScript

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