*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: none;
}

body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #333;
}

ul{
    display: flex;
    position: relative;
}

ul li{
    list-style: none;
    margin: 0 20px;
}

ul li a{
    display: inline-block;
    position: relative;
    font-size: 3.5rem;
    color: #fff;
    transition: color 1s;
}

ul li a:hover{
    color: #ff69b4;
}

.cursor{
    position: fixed;
    height: 0;
    width: 0;
    border: 4px solid #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    transition: width 0.2s, height 0.2s;
}

ul li:hover ~.cursor{
    width: 90px;
    height: 90px;
    border: 2px solid #ff69b4;
}