how can I specify the length/width of the border under li-CodePudding

I want a border under the li, but the border is taking up the full width. Is there a way to add a border bottom which doesn't takes the full width of li

.aboutusNav a {
  text-decoration: none;
  font-weight: normal;
  color: black
}

.aboutusNav {
  border-bottom: 3px solid transparent;
  display: inline-block;
}

.aboutusNav:hover {
  border-bottom: 3px solid #EB644C;

}

 <ul>
 <li ><a>AboutUs</a></li>
</ul>

CodePudding user response：

Perhaps try use a pseudo element ::before or ::after as the border, style it as needed and add a transition.

More about pseudo elements

This example uses ::before just so that if ::after is also added later for another effect, its natural position is stacked on top of ::before. But it seems that using either ::before or ::after would not make a significant difference in this use case alone.

Example:

.aboutusNav a {
  text-decoration: none;
  font-weight: normal;
  color: black;
}

.aboutusNav {
  display: inline-block;
  position: relative;
  cursor: pointer;
}

.aboutusNav::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 3px;
  background-color: #eb644c;
  transform-origin: center;
  transform: scaleX(0);
  transition: all 0.2s ease-in-out;
}

.aboutusNav:hover::before {
  transform: scaleX(0.5);
}

<ul>
  <li ><a>AboutUs</a></li>
</ul>