JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="block">Some block</div>
  <div class="block">Some block</div>
  <div class="block">Some block</div>
  <div class="block">Some block</div>
</div>

<p>What we want, but not with fixed method:</p>

<div class="container2">
  <div class="block">Some block</div>
  <div class="block">Some block</div>
  <div class="block">Some block</div>
  <div class="block last">Some block</div>
</div>

CSS

.container {
  width: 100%;
  border: 1px solid red;
  text-align: center;
  padding: 5px 0;
}
.container .block {
  display: inline-block;
  border: 1px solid green;
  padding: 10px;
}

.container2 {
  width: auto;
  border: 1px solid red;
  padding: 5px;
}
.container2 .block {
  display: inline-block;
  border: 1px solid green;
  padding: 10px;
  margin: 0 47px 0 0;
}
.container2 .block.last {
  margin: 0;
}