JSFiddle - React, Tailwind, and code Playground

HTML

<div class="footer-row">
  <div class="footer-column">컬럼1</div>
  <div class="footer-column">컬럼2</div>
  <div class="footer-column">컬럼3</div>
  <div class="footer-column">컬럼4</div>
</div>

CSS

.footer-row {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: red;
  color: white;
  text-align: center;
  display: flex;
  justify-content: space-around;
}

.footer-column {
  flex: 1;
  padding: 10px;
}