JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
  <div class="child"></div>
  <div class="child"></div>
  <div class="child"></div>
</div>

CSS

.parent {
  display: flex;
  flex-direction: row;
  
  background-color: red;
  min-width: 330px
}
.child {
  min-width: 100px;
  flex-basis: 0px;
  flex-grow: 1;
  
  margin: 5px;
  height: 100px;
  background-color: blue;
}