I made
.grid-commande {
display: flex;
flex-direction: row;
padding-bottom: 40px;
}
.flex-commande {
width: 70%;
display: flex;
flex-direction: column;
margin: 0px;
padding: 20px;
box-sizing: border-box;
}
.icon-fleche {
display: flex;
flex-direction: column;
padding: 0px 0px 0px 30px;
margin: 0px;
}
.icon-fleche h2 {
list-style-image: url("../img/icon-fleche.png");
padding: 0px;
margin: 0px 0px 10px;
}
.icon-fleche > ul {
list-style: none;
margin: 0px 0px 30px;
padding: 0px;
}
.icon-fleche > ul > li
{
padding: 15px 0px;
margin: 0px;
border-bottom:1px solid #ccc;
}
.each-title
{
display: flex;
flex-direction: row;
flex-wrap: nowrap;
justify-content: space-between;
}
.left-title ul {
list-style: none;
margin: 0px;
padding: 0px;
}
.left-title ul li {
display: inline-block;
position: relative;
margin-right: 15px;
}
.left-title ul li+li::before
{
content: '|';
display: inline-block;
position: absolute;
left: -12px;
top: -1px;
}
.commande-detail {
width:30%;
background-color: #6cb9e2;
padding: 10px;
}
.flex-detail {
display: flex;
justify-content: space-between;
padding: 10px;
}
<main class="container">
<h1>Ma Commande</h1>
<div class=" grid-commande">
<div class="flex-commande">
<div class="icon-fleche">
<h2>Burgers</h2>
<ul>
<li>
<div class="each-title">
<div class="left-title">
<ul>
<li>Le commodo</li>
<li>9.99$</li>
</ul>
</div>
<div class="right-title">
Quantité: 1
</div>
</div>
</li>
<li>
<div class="each-title">
<div class="left-title">
<ul>
<li>Le commodo</li>
<li>9.99$</li>
</ul>
</div>
<div class="right-title">
Quantité: 1
</div>
</div>
</li>
</ul>
</div>
<div class="icon-fleche">
<h2>Beignes</h2>
<ul>
<li>
<div class="each-title">
<div class="left-title">
<ul>
<li>Le commodo</li>
<li>9.99$</li>
</ul>
</div>
<div class="right-title">
Quantité: 1
</div>
</div>
</li>
<li>
<div class="each-title">
<div class="left-title">
<ul>
<li>Le commodo</li>
<li>9.99$</li>
</ul>
</div>
<div class="right-title">
Quantité: 1
</div>
</div>
</li>
</ul>
</div>
<!-- <ul>
<li class="icon-fleche">
<h2>Burgers</h2>
<ul>
<li>Le commodo | 9.99$ Quantité: 1</li>
<li>Le commodo | 9.99$ Quantité: 1</li>
</ul>
</li>
<li class="icon-fleche">
<h2>Beignes</h2>
<ul>
<li>Le commodo | 9.99$ Quantité: 1</li>
<li>Le commodo | 9.99$ Quantité: 1</li>
</ul>
</li>
</ul> -->
</div>
<div class="commande-detail ">
<h2>Détails</h2>
<div class=flex-detail>
<div>
<p><strong>Sous-total:</strong></p>
<p><strong>Taxes:</strong></p>
<p><strong>Total:</strong></p>
</div>
<div>
<p>29.96$</p>
<p>4.49$</p>
<p>34.45$</p>
</div>
</div>
<button class="principalBTN">Commander</button>
</div>
</div>
</main>
my own css for you. You can check my css and also html.