JSFiddle - React, Tailwind, and code Playground

HTML

<div class="menu">
    <span>Đ“fffffffff</span>
    <span>Page 19</span>
    <span>Page 1000</span>
    <span>Page0000000000</span>
    
    <span class="last"></span>
</div>

CSS

.menu { text-align:justify;}

.menu span {
    display:inline-block;
    border: 1px solid red;
}
.menu span.last {
    width:80%;
    line-height:1px;
    height:1px;
    border: none;
}