JSFiddle - React, Tailwind, and code Playground

HTML

<div class="hero__nav">
    <a href="#" class="hero__nav__items">О нас</a>
    <a href="#" class="hero__nav__items">Статистика</a>
    <a href="#" class="hero__nav__items">Новости</a>
    <a href="#" class="hero__nav__items">Контакты</a>
</div>

CSS

.hero__nav__items {
    color: #111;
    font-weight: 300;
    font-size: 15px;
    line-height: 24px;
    margin: 0 10px;
    outline: none;
        text-decoration: none;
}
.hero__nav__items:hover {
  color: #ffd801;
  font-weight: 700;
  border-bottom: 1px solid #ffd801;
  transition: all 0.4s;
  margin-right: 10px;
}