Ligas a paginas (Page Links)
¡Bienvenidos a la sección dos! Si bien la sección uno se centró por completo en los fundamentos iniciales de PHP, ahora continuaremos y aprenderemos cómo se ve construir una aplicación PHP típica con una base de datos MySQL.
Cosas que aprenderemos
- Page Linking (Ligas a paginas)
- Templates (Plantillas)
- TailwindCSS
Escoger una plantilla de Tailwind
Por ejemplo esta
y copiar el código dentro de <body> de nuestra vista index.view.php Ver las instrucciones que trae la plantilla de tailwind.
<html class="h-full bg-gray-100">
<body class="h-full">
Y aplicarla, también incluir las librerías cdn de de tailwindcss con:
<script src="https://cdn.tailwindcss.com"></script>
En este capitulo nos vamos a ir por el camino largo, copiando directamente todo el html de la vista principal a todas las demás vistas que deseamos crear.
Vamos a crear las siguientes vistas
- index.view.php la mandamos llamar con index.php
- about.view.php la mandamos llamar con about.php
- contact.view.php la mandamos llamar con contact.php
En index.php
require "index.view.php";
En about.php
require "about.view.php";
En contact.php
require "contact.view.php";
Código en las vistas
En index.view.php
Código PHP
<!DOCTYPE html>
<html lang="en" class="h-full bg-gray-100">
<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">
<title>Document</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="h-full">
<div class="min-h-full">
<!-- Navegación -->
<nav class="bg-gray-800">
<!-- Desktop menu -->
<div class="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
<div class="flex h-16 items-center justify-between">
<!-- Menu normal -->
<div class="flex items-center">
<div class="flex-shrink-0">
<img class="h-8 w-8" src="https://tailwindui.com/img/logos/mark.svg?color=indigo&shade=500"
alt="Your Company">
</div>
<div class="hidden md:block">
<div class="ml-10 flex items-baseline space-x-4">
<!-- Current: "bg-gray-900 text-white", Default: "text-gray-300 hover:bg-gray-700 hover:text-white" -->
<a href="/" class="bg-gray-900 text-white px-3 py-2 rounded-md text-sm font-medium" aria-current="page">Home</a>
<a href="/about.php" class="text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium">Nosotros</a>
<a href="/contact.php" class="text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium">Contactarnos</a>
</div>
</div>
</div>
<!-- hidden md:block botón View notifications y Profile dropdown -->
<div class="hidden md:block">
<div class="ml-4 flex items-center md:ml-6">
<!-- botón View notifications -->
<button type="button"
class="rounded-full bg-gray-800 p-1 text-gray-400 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800">
<span class="sr-only">View notifications</span>
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M14.857 17.082a23.848 23.848 0 005.454-1.31A8.967 8.967 0 0118 9.75v-.7V9A6 6 0 006 9v.75a8.967 8.967 0 01-2.312 6.022c1.733.64 3.56 1.085 5.455 1.31m5.714 0a24.255 24.255 0 01-5.714 0m5.714 0a3 3 0 11-5.714 0" />
</svg>
</button>
<!-- Profile dropdown -->
<div class="relative ml-3">
<div>
<button type="button"
class="flex max-w-xs items-center rounded-full bg-gray-800 text-sm focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800"
id="user-menu-button" aria-expanded="false" aria-haspopup="true">
<span class="sr-only">Open user menu</span>
<img class="h-8 w-8 rounded-full"
src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80"
alt="">
</button>
</div>
<!--
Dropdown menu, show/hide based on menu state.
Entering: "transition ease-out duration-100"
From: "transform opacity-0 scale-95"
To: "transform opacity-100 scale-100"
Leaving: "transition ease-in duration-75"
From: "transform opacity-100 scale-100"
To: "transform opacity-0 scale-95"
-->
<div class="absolute right-0 z-10 mt-2 w-48 origin-top-right rounded-md bg-white py-1 shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none"
role="menu" aria-orientation="vertical" aria-labelledby="user-menu-button"
tabindex="-1">
<!-- Active: "bg-gray-100", Not Active: "" -->
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-0">Your Profile</a>
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-1">Settings</a>
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-2">Sign out</a>
</div>
</div>
</div>
</div>
<!-- Para el botón de Movil, si estamos en modo Movil -->
<div class="-mr-2 flex md:hidden">
<!-- Mobile menu button -->
<button type="button"
class="inline-flex items-center justify-center rounded-md bg-gray-800 p-2 text-gray-400 hover:bg-gray-700 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800"
aria-controls="mobile-menu" aria-expanded="false">
<span class="sr-only">Open main menu</span>
<!-- Menu open: "hidden", Menu closed: "block" -->
<svg class="block h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5" />
</svg>
<!-- Menu open: "block", Menu closed: "hidden" -->
<svg class="hidden h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
</div>
</div>
<!-- Mobile menu, show/hide based on menu state. -->
<div class="md:hidden" id="mobile-menu">
<div class="space-y-1 px-2 pt-2 pb-3 sm:px-3">
<!-- Current: "bg-gray-900 text-white", Default: "text-gray-300 hover:bg-gray-700 hover:text-white" -->
<a href="#" class="bg-gray-900 text-white block px-3 py-2 rounded-md text-base font-medium"
aria-current="page">Dashboard</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Team</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Projects</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Calendar</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Reports</a>
</div>
<div class="border-t border-gray-700 pt-4 pb-3">
<div class="flex items-center px-5">
<div class="flex-shrink-0">
<img class="h-10 w-10 rounded-full"
src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80"
alt="">
</div>
<div class="ml-3">
<div class="text-base font-medium leading-none text-white">Tom Cook</div>
<div class="text-sm font-medium leading-none text-gray-400">tom@example.com</div>
</div>
<button type="button"
class="ml-auto flex-shrink-0 rounded-full bg-gray-800 p-1 text-gray-400 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800">
<span class="sr-only">View notifications</span>
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M14.857 17.082a23.848 23.848 0 005.454-1.31A8.967 8.967 0 0118 9.75v-.7V9A6 6 0 006 9v.75a8.967 8.967 0 01-2.312 6.022c1.733.64 3.56 1.085 5.455 1.31m5.714 0a24.255 24.255 0 01-5.714 0m5.714 0a3 3 0 11-5.714 0" />
</svg>
</button>
</div>
<div class="mt-3 space-y-1 px-2">
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Your
Profile</a>
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Settings</a>
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Sign
out</a>
</div>
</div>
</div>
</nav>
<!-- Encabezado -->
<header class="bg-white shadow">
<div class="mx-auto max-w-7xl py-6 px-4 sm:px-6 lg:px-8">
<h1 class="text-3xl font-bold tracking-tight text-gray-900">Dashboard</h1>
</div>
</header>
<!-- Contenido -->
<main>
<div class="mx-auto max-w-7xl py-6 sm:px-6 lg:px-8">
<p>Hola Bienvenido a la pagina inicial</p>
</div>
</main>
</div>
</body>
</html>
En about.view.php
Código PHP
<!DOCTYPE html>
<html lang="en" class="h-full bg-gray-100">
<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">
<title>Document</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="h-full">
<div class="min-h-full">
<!-- Navegación -->
<nav class="bg-gray-800">
<!-- Desktop menu -->
<div class="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
<div class="flex h-16 items-center justify-between">
<!-- Menu normal -->
<div class="flex items-center">
<div class="flex-shrink-0">
<img class="h-8 w-8" src="https://tailwindui.com/img/logos/mark.svg?color=indigo&shade=500"
alt="Your Company">
</div>
<div class="hidden md:block">
<div class="ml-10 flex items-baseline space-x-4">
<!-- Current: "bg-gray-900 text-white", Default: "text-gray-300 hover:bg-gray-700 hover:text-white" -->
<a href="/" class="text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium" aria-current="page">Home</a>
<a href="/about.php" class="bg-gray-900 text-white text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium">Nosotros</a>
<a href="/contact.php" class="text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium">Contactarnos</a>
</div>
</div>
</div>
<!-- hidden md:block botón View notifications y Profile dropdown -->
<div class="hidden md:block">
<div class="ml-4 flex items-center md:ml-6">
<!-- botón View notifications -->
<button type="button"
class="rounded-full bg-gray-800 p-1 text-gray-400 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800">
<span class="sr-only">View notifications</span>
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M14.857 17.082a23.848 23.848 0 005.454-1.31A8.967 8.967 0 0118 9.75v-.7V9A6 6 0 006 9v.75a8.967 8.967 0 01-2.312 6.022c1.733.64 3.56 1.085 5.455 1.31m5.714 0a24.255 24.255 0 01-5.714 0m5.714 0a3 3 0 11-5.714 0" />
</svg>
</button>
<!-- Profile dropdown -->
<div class="relative ml-3">
<div>
<button type="button"
class="flex max-w-xs items-center rounded-full bg-gray-800 text-sm focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800"
id="user-menu-button" aria-expanded="false" aria-haspopup="true">
<span class="sr-only">Open user menu</span>
<img class="h-8 w-8 rounded-full"
src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80"
alt="">
</button>
</div>
<!--
Dropdown menu, show/hide based on menu state.
Entering: "transition ease-out duration-100"
From: "transform opacity-0 scale-95"
To: "transform opacity-100 scale-100"
Leaving: "transition ease-in duration-75"
From: "transform opacity-100 scale-100"
To: "transform opacity-0 scale-95"
-->
<div class="absolute right-0 z-10 mt-2 w-48 origin-top-right rounded-md bg-white py-1 shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none"
role="menu" aria-orientation="vertical" aria-labelledby="user-menu-button"
tabindex="-1">
<!-- Active: "bg-gray-100", Not Active: "" -->
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-0">Your Profile</a>
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-1">Settings</a>
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-2">Sign out</a>
</div>
</div>
</div>
</div>
<!-- Para el botón de Movil, si estamos en modo Movil -->
<div class="-mr-2 flex md:hidden">
<!-- Mobile menu button -->
<button type="button"
class="inline-flex items-center justify-center rounded-md bg-gray-800 p-2 text-gray-400 hover:bg-gray-700 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800"
aria-controls="mobile-menu" aria-expanded="false">
<span class="sr-only">Open main menu</span>
<!-- Menu open: "hidden", Menu closed: "block" -->
<svg class="block h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5" />
</svg>
<!-- Menu open: "block", Menu closed: "hidden" -->
<svg class="hidden h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
</div>
</div>
<!-- Mobile menu, show/hide based on menu state. -->
<div class="md:hidden" id="mobile-menu">
<div class="space-y-1 px-2 pt-2 pb-3 sm:px-3">
<!-- Current: "bg-gray-900 text-white", Default: "text-gray-300 hover:bg-gray-700 hover:text-white" -->
<a href="#" class="bg-gray-900 text-white block px-3 py-2 rounded-md text-base font-medium"
aria-current="page">Dashboard</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Team</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Projects</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Calendar</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Reports</a>
</div>
<div class="border-t border-gray-700 pt-4 pb-3">
<div class="flex items-center px-5">
<div class="flex-shrink-0">
<img class="h-10 w-10 rounded-full"
src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80"
alt="">
</div>
<div class="ml-3">
<div class="text-base font-medium leading-none text-white">Tom Cook</div>
<div class="text-sm font-medium leading-none text-gray-400">tom@example.com</div>
</div>
<button type="button"
class="ml-auto flex-shrink-0 rounded-full bg-gray-800 p-1 text-gray-400 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800">
<span class="sr-only">View notifications</span>
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M14.857 17.082a23.848 23.848 0 005.454-1.31A8.967 8.967 0 0118 9.75v-.7V9A6 6 0 006 9v.75a8.967 8.967 0 01-2.312 6.022c1.733.64 3.56 1.085 5.455 1.31m5.714 0a24.255 24.255 0 01-5.714 0m5.714 0a3 3 0 11-5.714 0" />
</svg>
</button>
</div>
<div class="mt-3 space-y-1 px-2">
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Your
Profile</a>
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Settings</a>
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Sign
out</a>
</div>
</div>
</div>
</nav>
<!-- Encabezado -->
<header class="bg-white shadow">
<div class="mx-auto max-w-7xl py-6 px-4 sm:px-6 lg:px-8">
<h1 class="text-3xl font-bold tracking-tight text-gray-900">Dashboard</h1>
</div>
</header>
<!-- Contenido -->
<main>
<div class="mx-auto max-w-7xl py-6 sm:px-6 lg:px-8">
<p>Ahora estas es la pagina about ("Nosotros")</p>
</div>
</main>
</div>
</body>
</html>
En contact.view.php
Código PHP
<!DOCTYPE html>
<html lang="en" class="h-full bg-gray-100">
<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">
<title>Document</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="h-full">
<div class="min-h-full">
<!-- Navegación -->
<nav class="bg-gray-800">
<!-- Desktop menu -->
<div class="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
<div class="flex h-16 items-center justify-between">
<!-- Menu normal -->
<div class="flex items-center">
<div class="flex-shrink-0">
<img class="h-8 w-8" src="https://tailwindui.com/img/logos/mark.svg?color=indigo&shade=500"
alt="Your Company">
</div>
<div class="hidden md:block">
<div class="ml-10 flex items-baseline space-x-4">
<!-- Current: "bg-gray-900 text-white", Default: "text-gray-300 hover:bg-gray-700 hover:text-white" -->
<a href="/" class="text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium" aria-current="page">Home</a>
<a href="/about.php" class="text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium">Nosotros</a>
<a href="/contact.php" class="bg-gray-900 text-white text-gray-300 hover:bg-gray-700 hover:text-white px-3 py-2 rounded-md text-sm font-medium">Contactarnos</a>
</div>
</div>
</div>
<!-- hidden md:block botón View notifications y Profile dropdown -->
<div class="hidden md:block">
<div class="ml-4 flex items-center md:ml-6">
<!-- botón View notifications -->
<button type="button"
class="rounded-full bg-gray-800 p-1 text-gray-400 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800">
<span class="sr-only">View notifications</span>
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M14.857 17.082a23.848 23.848 0 005.454-1.31A8.967 8.967 0 0118 9.75v-.7V9A6 6 0 006 9v.75a8.967 8.967 0 01-2.312 6.022c1.733.64 3.56 1.085 5.455 1.31m5.714 0a24.255 24.255 0 01-5.714 0m5.714 0a3 3 0 11-5.714 0" />
</svg>
</button>
<!-- Profile dropdown -->
<div class="relative ml-3">
<div>
<button type="button"
class="flex max-w-xs items-center rounded-full bg-gray-800 text-sm focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800"
id="user-menu-button" aria-expanded="false" aria-haspopup="true">
<span class="sr-only">Open user menu</span>
<img class="h-8 w-8 rounded-full"
src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80"
alt="">
</button>
</div>
<!--
Dropdown menu, show/hide based on menu state.
Entering: "transition ease-out duration-100"
From: "transform opacity-0 scale-95"
To: "transform opacity-100 scale-100"
Leaving: "transition ease-in duration-75"
From: "transform opacity-100 scale-100"
To: "transform opacity-0 scale-95"
-->
<div class="absolute right-0 z-10 mt-2 w-48 origin-top-right rounded-md bg-white py-1 shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none"
role="menu" aria-orientation="vertical" aria-labelledby="user-menu-button"
tabindex="-1">
<!-- Active: "bg-gray-100", Not Active: "" -->
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-0">Your Profile</a>
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-1">Settings</a>
<a href="#" class="block px-4 py-2 text-sm text-gray-700" role="menuitem"
tabindex="-1" id="user-menu-item-2">Sign out</a>
</div>
</div>
</div>
</div>
<!-- Para el botón de Movil, si estamos en modo Movil -->
<div class="-mr-2 flex md:hidden">
<!-- Mobile menu button -->
<button type="button"
class="inline-flex items-center justify-center rounded-md bg-gray-800 p-2 text-gray-400 hover:bg-gray-700 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800"
aria-controls="mobile-menu" aria-expanded="false">
<span class="sr-only">Open main menu</span>
<!-- Menu open: "hidden", Menu closed: "block" -->
<svg class="block h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5" />
</svg>
<!-- Menu open: "block", Menu closed: "hidden" -->
<svg class="hidden h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
</div>
</div>
<!-- Mobile menu, show/hide based on menu state. -->
<div class="md:hidden" id="mobile-menu">
<div class="space-y-1 px-2 pt-2 pb-3 sm:px-3">
<!-- Current: "bg-gray-900 text-white", Default: "text-gray-300 hover:bg-gray-700 hover:text-white" -->
<a href="#" class="bg-gray-900 text-white block px-3 py-2 rounded-md text-base font-medium"
aria-current="page">Dashboard</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Team</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Projects</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Calendar</a>
<a href="#"
class="text-gray-300 hover:bg-gray-700 hover:text-white block px-3 py-2 rounded-md text-base font-medium">Reports</a>
</div>
<div class="border-t border-gray-700 pt-4 pb-3">
<div class="flex items-center px-5">
<div class="flex-shrink-0">
<img class="h-10 w-10 rounded-full"
src="https://images.unsplash.com/photo-1472099645785-5658abf4ff4e?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=facearea&facepad=2&w=256&h=256&q=80"
alt="">
</div>
<div class="ml-3">
<div class="text-base font-medium leading-none text-white">Tom Cook</div>
<div class="text-sm font-medium leading-none text-gray-400">tom@example.com</div>
</div>
<button type="button"
class="ml-auto flex-shrink-0 rounded-full bg-gray-800 p-1 text-gray-400 hover:text-white focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-gray-800">
<span class="sr-only">View notifications</span>
<svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round"
d="M14.857 17.082a23.848 23.848 0 005.454-1.31A8.967 8.967 0 0118 9.75v-.7V9A6 6 0 006 9v.75a8.967 8.967 0 01-2.312 6.022c1.733.64 3.56 1.085 5.455 1.31m5.714 0a24.255 24.255 0 01-5.714 0m5.714 0a3 3 0 11-5.714 0" />
</svg>
</button>
</div>
<div class="mt-3 space-y-1 px-2">
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Your
Profile</a>
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Settings</a>
<a href="#"
class="block rounded-md px-3 py-2 text-base font-medium text-gray-400 hover:bg-gray-700 hover:text-white">Sign
out</a>
</div>
</div>
</div>
</nav>
<!-- Encabezado -->
<header class="bg-white shadow">
<div class="mx-auto max-w-7xl py-6 px-4 sm:px-6 lg:px-8">
<h1 class="text-3xl font-bold tracking-tight text-gray-900">Dashboard</h1>
</div>
</header>
<!-- Contenido -->
<main>
<div class="mx-auto max-w-7xl py-6 sm:px-6 lg:px-8">
<p>Ahora estas es la pagina contact ("Contactarnos")</p>
</div>
</main>
</div>
</body>
</html>
Listo!
Como puedes ver, hay mucho código duplicado y se vuelve un dolor de cabeza hacerle cualquier cambio al código de navegación!