JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><p>Content</p></li>
    <li><p>Content</p></li>
    <li><p>Content</p></li>
    <li><p>Content</p></li>
</ul>

CSS

*{
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
}

ul{
    position: relative;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    padding: 0;
    list-style: none;
}

li p{
    width: 15vw;
    background: lightgrey;
    border-radius: 50%;
    line-height: 15vw;
    text-align: center;
    font-family: sans-serif;
    font-size: 1.2vw;
    color: grey;
}

li + li::before{
    content:"";
    position: absolute;
    top: 0;
    bottom: 0;
    border-right: 1px solid lightgrey;
}

li + li::before{left: calc(25% - 3.75vw);} /* 3/4 de 5vw */
li + li + li::before{left: 50%;}
li + li + li + li::before{left: calc(75% + 3.75vw);} /* 3/4 de 5vw */