JSFiddle - React, Tailwind, and code Playground

HTML

<nav class="menuMobile">
  <ul>
    <li><span><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#">ACCUEIL</a></span></li>
    <li><span><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#">MUSIQUE</a></span></li>
    <li><span><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#">FILMS</a></span></li>
    <li><span><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#">CONTACT</a></span></li>
    <!--
    <li><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#musiques">MUSIQUES</a></li>
    <li><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#films">FILMS</a></li>
    <li><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#bio">BIO</a></li>
    <li><img src="https://upload.wikimedia.org/wikipedia/commons/d/d8/Instagram_Shiny_Icon.svg"><a href="#contact">CONTACT</a></li> -->
  </ul>
</nav>

CSS

.menuMobile ul{
  /* reset */
  list-style: none;
  padding: 0;
  margin: 0;
  width: 30%;
  /* position */
  position: fixed;
  top: 0;
  right: -100px;
  /* bordure 
  border: 1px solid red; */
}

.menuMobile ul li{
   /*display*/
  display: flex;
  align-items: center;
  justify-content: flex-end;
  position: relative;
  /*border: 1px solid green;*/
}

.menuMobile span{
  display: inherit;
  align-items: center;
  justify-content: flex-start;
  width: 50%;
}

.menuMobile img{
  width: 35px;
  align-items: center;
}


.menuMobile li a{
  text-decoration: none;
  color: green;
}

JavaScript

$(document).ready(function(){
   $('.menuMobile li img').mouseenter(function(){
   		var p = $(this).parents('li');
      p.css('justify-content', "flex-start")
   });
   $('.menuMobile li').mouseleave(function(){
   		var p = $(this);
      p.css('justify-content', 'flex-end');
   })
});