body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: blue;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
a {
    position: relative;
    display: inline-block;
    padding: 15px, 30px;
    text-transform: uppercase;
    color:rgb(42, 195, 255);
    font-size: 24px;
    overflow:hidden

}
a:hover {
    color:rgb(0, 255, 55);
    transition-delay: 1s;
}
a span {
    position:absolute;
    display:block
}
a span:nth-child(1) {
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background-color: rgb(58, 226, 43);
}
a:hover span:nth-child(1) {
    left: 100%;
    transition:1s;
}
a span:nth-child(3) {
    top:0;
    left: 100%
    
}


