"404 page"
Bootstrap 4.1.1 Snippet by ALIMUL AL RAZY

<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="hamburger-menu"> <button class="burger" data-state="closed"> <span></span> <span></span> <span></span> </button> </div> <nav data-state="closed"> <ul> <li> <a href="#">Home</a> </li> <li> <a href="#">Services</a> </li> <li> <a href="#">About</a> </li> <li> <a href="#">Contact</a> </li> </ul> </nav> <main> <div class="container"> <div class="row"> <div class="col-md-6 align-self-center"> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 800 600"> <g> <defs> <clipPath id="GlassClip"> <path d="M380.857,346.164c-1.247,4.651-4.668,8.421-9.196,10.06c-9.332,3.377-26.2,7.817-42.301,3.5 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You're lost.</h2> <p>The page you are looking for does not exist. How you got here is a mystery. But you can click the button below to go back to the homepage. </p> <button class="btn green">HOME</button> </div> </div> </div> </main> <script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.1.1/gsap.min.js"></script> <script> gsap.set("svg", { visibility: "visible" }); gsap.to("#headStripe", { y: 0.5, rotation: 1, yoyo: true, repeat: -1, ease: "sine.inOut", duration: 1 }); gsap.to("#spaceman", { y: 0.5, rotation: 1, yoyo: true, repeat: -1, ease: "sine.inOut", duration: 1 }); gsap.to("#craterSmall", { x: -3, yoyo: true, repeat: -1, duration: 1, ease: "sine.inOut" }); gsap.to("#craterBig", { x: 3, yoyo: true, repeat: -1, duration: 1, ease: "sine.inOut" }); gsap.to("#planet", { rotation: -2, yoyo: true, repeat: -1, duration: 1, ease: "sine.inOut", transformOrigin: "50% 50%" }); gsap.to("#starsBig g", { rotation: "random(-30,30)", transformOrigin: "50% 50%", yoyo: true, repeat: -1, ease: "sine.inOut" }); gsap.fromTo( "#starsSmall g", { scale: 0, transformOrigin: "50% 50%" }, { scale: 1, transformOrigin: "50% 50%", yoyo: true, repeat: -1, stagger: 0.1 } ); gsap.to("#circlesSmall circle", { y: -4, yoyo: true, duration: 1, ease: "sine.inOut", repeat: -1 }); gsap.to("#circlesBig circle", { y: -2, yoyo: true, duration: 1, ease: "sine.inOut", repeat: -1 }); gsap.set("#glassShine", { x: -68 }); gsap.to("#glassShine", { x: 80, duration: 2, rotation: -30, ease: "expo.inOut", transformOrigin: "50% 50%", repeat: -1, repeatDelay: 8, delay: 2 }); const burger = document.querySelector('.burger'); const nav = document.querySelector('nav'); burger.addEventListener('click',(e) => { burger.dataset.state === 'closed' ? burger.dataset.state = "open" : burger.dataset.state = "closed" nav.dataset.state === "closed" ? nav.dataset.state = "open" : nav.dataset.state = "closed" }) </script>
@import url("https://fonts.googleapis.com/css?family=Nunito+Sans"); :root { --blue: #0e0620; --white: #fff; --green: #2ccf6d; } html, body { height: 100%; } body { display: flex; align-items: center; justify-content: center; font-family: "Nunito Sans"; color: var(--blue); font-size: 1em; } button { font-family: "Nunito Sans"; } ul { list-style-type: none; -webkit-padding-start: 35px; padding-inline-start: 35px; } svg { width: 100%; visibility: hidden; } h1 { font-size: 7.5em; margin: 15px 0px; font-weight: bold; } h2 { font-weight: bold; } .hamburger-menu { position: absolute; top: 0; left: 0; padding: 35px; z-index: 2; } .hamburger-menu button { position: relative; width: 30px; height: 22px; border: none; background: none; padding: 0; cursor: pointer; } .hamburger-menu button span { position: absolute; height: 3px; background: #000; width: 100%; left: 0px; top: 0px; transition: 0.1s ease-in; } .hamburger-menu button span:nth-child(2) { top: 9px; } .hamburger-menu button span:nth-child(3) { top: 18px; } .hamburger-menu [data-state=open] span:first-child { transform: rotate(45deg); top: 10px; } .hamburger-menu [data-state=open] span:nth-child(2) { width: 0%; opacity: 0; } .hamburger-menu [data-state=open] span:nth-child(3) { transform: rotate(-45deg); top: 10px; } nav { position: absolute; height: 100%; top: 0; left: 0; background: var(--green); color: var(--blue); width: 300px; z-index: 1; padding-top: 80px; transform: translateX(-100%); transition: 0.24s cubic-bezier(0.52, 0.01, 0.8, 1); } nav li { transform: translateX(-5px); transition: 0.16s cubic-bezier(0.44, 0.09, 0.46, 0.84); opacity: 0; } nav a { display: block; font-size: 1.75em; font-weight: bold; text-decoration: none; color: inherit; transition: 0.24s ease-in-out; } nav a:hover { text-decoration: none; color: var(--white); } nav[data-state=open] { transform: translateX(0%); } nav[data-state=open] ul li:nth-child(1) { transition-delay: 0.16s; transform: translateX(0px); opacity: 1; } nav[data-state=open] ul li:nth-child(2) { transition-delay: 0.32s; transform: translateX(0px); opacity: 1; } nav[data-state=open] ul li:nth-child(3) { transition-delay: 0.48s; transform: translateX(0px); opacity: 1; } nav[data-state=open] ul li:nth-child(4) { transition-delay: 0.64s; transform: translateX(0px); opacity: 1; } .btn { z-index: 1; overflow: hidden; background: transparent; position: relative; padding: 8px 50px; border-radius: 30px; cursor: pointer; font-size: 1em; letter-spacing: 2px; transition: 0.2s ease; font-weight: bold; margin: 5px 0px; } .btn.green { border: 4px solid var(--green); color: var(--blue); } .btn.green:before { content: ""; position: absolute; left: 0; top: 0; width: 0%; height: 100%; background: var(--green); z-index: -1; transition: 0.2s ease; } .btn.green:hover { color: var(--white); background: var(--green); transition: 0.2s ease; } .btn.green:hover:before { width: 100%; } @media screen and (max-width: 768px) { body { display: block; } .container { margin-top: 70px; margin-bottom: 70px; } }

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