Utilities for controlling how flex and grid items are positioned along a container's cross axis.
<div class="flex items-stretch ...">
  <div class="py-4">1</div>
  <div class="py-12">2</div>
  <div class="py-8">3</div>
</div><div class="flex items-start ...">
  <div class="h-12">1</div>
  <div class="h-24">2</div>
  <div class="h-16">3</div>
</div><div class="flex items-center ...">
  <div>1</div>
  <div>2</div>
  <div>3</div>
</div><div class="flex items-end ...">
  <div>1</div>
  <div>2</div>
  <div>3</div>
</div>Use items-baseline to align items along the container's cross axis such that all of their baselines align:
<div class="flex items-baseline ...">
  <div class="pt-4 pb-6 ...">1</div>
  <div class="pt-6 pb-10 ...">2</div>
  <div class="pt-8 pb-4 ...">3</div>
</div>To control the alignment of flex items at a specific breakpoint, add a {screen}: prefix to any existing utility class. For example, use md:items-center to apply the items-center utility at only medium screen sizes and above.
<div class="items-stretch md:items-center ...">
  <!-- ... -->
</div>For more information about Tailwind's responsive design features, check out the Responsive Design documentation.
By default, only responsive variants are generated for align-items utilities.
You can control which variants are generated for the align-items utilities by modifying the alignItems property in the variants section of your tailwind.config.js file.
For example, this config will also generate hover and focus variants:
  // tailwind.config.js
  module.exports = {
    variants: {
      extend: {
        // ...
+       alignItems: ['hover', 'focus'],
      }
    }
  }If you don't plan to use the align-items utilities in your project, you can disable them entirely by setting the alignItems property to false in the corePlugins section of your config file:
  // tailwind.config.js
  module.exports = {
    corePlugins: {
      // ...
+     alignItems: false,
    }
  }