JSFiddle - React, Tailwind, and code Playground

HTML

<footer>
  <p>©Copyright by , 2020</p>
  <p id="myID">Контакты:</p>
</footer>

CSS

footer {
  display: flex;
  width: 78%;
  margin-left: 10%;
  background-color: #2D2D2F;
  padding-right: 1%;
  padding-left: 1%;
  padding-top: 1%;
}

footer * {
  color: white;
  background-color: #2D2D2F;
  font-size: 20px;
}

#myID {
  margin-left: auto;
}