JSFiddle - React, Tailwind, and code Playground

by Ankhena

HTML

<div class="wrapper">

  <div class="inner">
    <aside>aside 200px</aside>
    <main>main</main>

  </div>

</div>

CSS

* {
  box-sizing: border-box
}

html,
body {
  height: 100%;
  padding: 0;
  margin: 0;
}

.wrapper {
  background: linear-gradient(to right, red 50%, darkred 50%);
}

.inner {
  display: flex;
  width: 70%;
  min-width: 400px;
  height: 200px;
  margin: auto;
  border: 1px dashed gray;
}
aside {
  width: 200px;
  background: red;
}
main {
  flex: 1;
  background: darkred;
}