JSFiddle - React, Tailwind, and code Playground

HTML

<div class="div_template">    
  <div class="col col1"><img class="img" src="#" width="35" height="35" ></div>  
  <div class="col col2">
    <p class="p1">Paramètres du dossier</p>
    <p class="p2">Définissez la langue et le fuseau horaire de votre dossier. Impossible à modifier en EDITION</p>
  </div>
  <div class="col col3">
  <div class="col col3A">
  <div class="label">Langue</div>
  <div class="button">FR</div>
  <div class="button">EN</div>
  </div>
   <div class="col col3B">
  <div class="label">Fuseau</div>
  <div class="button">CET</div>
  <div class="button">UTC</div></div>
  </div>
</div>

CSS

.div_template {
display: flex;
flex-direction: row;
flex: 1;
flex-wrap: wrap;
padding: 7px;
box-sizing: border-box;
border: 1px solid grey;

    }
.div_template .col {
  display: inline-flex;
  box-sizing: border-box;
  min-height: 50px;
}
.div_template .col1 { width: 70px;}
.div_template .col2 { 
width: 270px;
flex-direction: column;
}
.div_template .col3 { 
  flex: 1;
  padding-left: 30px;
 }

.div_template .img { margin-top: 7.5px;margin-left: 7.5px; }

.div_template .p1 { 
margin: 0px; 
padding: 0px;
font-family: Arial; 
font-size: 15px; 
font-weight: bold; 
line-height: 20px; 
height: 20px;
}
.div_template .p2 { 
margin: 0px; 
padding: 0px;
font-family: Arial; 
font-size: 12px; 
flex: 1;
}

.div_template .button{
  height: 24px;
  line-height: 24px;
  font: bold 14px/24px Arial;
  border: 1px solid black;
  margin-top: 11px;
  padding: 0px 7px;
  margin-right: 15px;
}


.div_template .label{
  height: 24px;
  line-height: 24px;
  font: 14px/24px Arial;
  margin-top: 11px;
  padding: 0px 7px;
  margin-right: 15px;
}
.div_template .col3A, .div_template .col3B  { 
  display: inline-flex;
  flex: 1;
  padding-left: 30px;
 }