728x90
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <script src="https://cdn.tailwindcss.com"></script>
    <title>Borders</title>
  </head>
  <body>
    <!-- Border Width & Colors -->
    <div class="w-96 m-3 p-5 border">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-2">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-3">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-4 border-red-500">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-x-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-y-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-t-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-b-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-l-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-r-4">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    

    <!-- Border Radius -->
    <div class="w-96 m-3 p-5 border-4 rounded">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-4 rounded-md">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-4 rounded-lg">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-4 rounded-xl">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-4 rounded-2xl">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-4 rounded-3xl">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
    <div class="w-96 m-3 p-5 border-4 rounded-full">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <div class="w-96 m-3 p-5 border-4 rounded-t-2xl">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>

    <!-- Outline -->
    <div class="outline outline-4 outline-offset-2 outline-red-500">
      Lorem ipsum dolor sit amet consectetur adipisicing elit. Quasi fuga in ut odio quia sapiente atque aliquid neque consequuntur quisquam dolor placeat dolorum aperiam itaque maiores dolore deserunt, id tempore!
    </div>
  </body>
</html>

<!-- Border Widths
      border-0	    border-width: 0px;
      border-2	    border-width: 2px;
      border-4	    border-width: 4px;
      border-8	    border-width: 8px;
      border	      border-width: 1px;
      border-x-0	  border-left-width: 0px;
                    border-right-width: 0px;
      border-x-2	  border-left-width: 2px;
                    border-right-width: 2px;
      border-x-4    border-left-width: 4px;
                    border-right-width: 4px;
      border-x-8	  border-left-width: 8px;
                    border-right-width: 8px;
      border-x	    border-left-width: 1px;
                    border-right-width: 1px;
      border-y-0  	border-top-width: 0px;
                    border-bottom-width: 0px;
      border-y-2	  border-top-width: 2px;
                    border-bottom-width: 2px;
      border-y-4	  border-top-width: 4px;
                    border-bottom-width: 4px;
      border-y-8	  border-top-width: 8px;
                    border-bottom-width: 8px;
      border-y	    border-top-width: 1px;
                    border-bottom-width: 1px;
      border-t-0	  border-top-width: 0px;
      border-t-2	  border-top-width: 2px;
      border-t-4	  border-top-width: 4px;
      border-t-8	  border-top-width: 8px;
      border-t	    border-top-width: 1px;
      border-r-0	  border-right-width: 0px;
      border-r-2	  border-right-width: 2px;
      border-r-4	  border-right-width: 4px;
      border-r-8	  border-right-width: 8px;
      border-r	    border-right-width: 1px;
      border-b-0	  border-bottom-width: 0px;
      border-b-2	  border-bottom-width: 2px;
      border-b-4	  border-bottom-width: 4px;
      border-b-8	  border-bottom-width: 8px;
      border-b	    border-bottom-width: 1px;
      border-l-0	  border-left-width: 0px;
      border-l-2	  border-left-width: 2px;
      border-l-4	  border-left-width: 4px;
      border-l-8	  border-left-width: 8px;
      border-l	    border-left-width: 1px;
    -->

<!-- Border Radius
      rounded-none	    border-radius: 0px;
      rounded-sm	      border-radius: 0.125rem; /* 2px */
      rounded	          border-radius: 0.25rem; /* 4px */
      rounded-md	      border-radius: 0.375rem; /* 6px */
      rounded-lg	      border-radius: 0.5rem; /* 8px */
      rounded-xl	      border-radius: 0.75rem; /* 12px */
      rounded-2xl	      border-radius: 1rem; /* 16px */
      rounded-3xl	      border-radius: 1.5rem; /* 24px */
      rounded-full	    border-radius: 9999px;
     -->

<!-- Outline
      outline-0	outline-width: 0px;
      outline-1	outline-width: 1px;
      outline-2	outline-width: 2px;
      outline-4	outline-width: 4px;
      outline-8	outline-width: 8px;
  -->

복사했습니다!