*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh; 
    overflow: hidden;
    font-family: 'Poppins', sans-serif;  
}
li { 
    position: relative; 
    text-align: center; 
    list-style: none;
    text-decoration: none;
} 
a{
    display:inline-block;
    color: #333; 
    text-decoration: none; 
    font-size: 50px; 
    padding: 5px 10px; 
    font-weight: 800;
}
ul:hover li a { 
    color: #0002; 
} 
ul li:hover a { 
    color: #000; 
    background: rgba(255,255,255,1); 
    border-radius: 5px;
} 
ul li a:hover:before { 
    content: attr(data-text); 
    opacity: 1; 
    left: 50%; 
    letter-spacing: 10px; 
    width: 2000px; 
    height: 2000px; 
}
ul li a:before { 
    content: ''; 
    opacity: 0; 
    position: absolute; 
    z-index: -2; 
    transform: translate(-50%,-50%); 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    font-size: 200px; 
    color: rgba(0,0,0,.1); 
    border-radius: 100px; 
    font-weight: 900; 
    text-transform: uppercase; 
    letter-spacing: 300px; 
    transition: letter-spacing 0.5s,left 0.5s; 
}
ul li:nth-child(1) a:before { 
    background: #81ecec; 
   }

ul li:nth-child(2) a:before { 
    background: #ff7675; 
} 

ul li:nth-child(3) a:before { 
   background: #55efc4; 
} 

ul li:nth-child(4) a:before { 
   background: #a29bfe; 
} 

ul li:nth-child(5) a:before { 
   background: #fd79a8; 
}

ul li:nth-child(6) a:before { 
   background: #ffeaa7; 
}