@import url('https://fonts.googleapis.com/css?family=Montserrat:400,800'); * { box-sizing: border-box; } body { font-family: 'Montserrat', sans-serif; background: #f6f5f7; display: flex; flex-direction: column; justify-content: center; align-items: center; height: 100vh; margin: -20px 0 50px; } h1 { font-weight: bold; margin: 0; } p { font-size: 14px; font-weight: 100; line-height: 20px; letter-spacing: .5px; margin: 20px 0 30px; } span { font-size: 12px; } a { color: #333; font-size: 14px; text-decoration: none; margin: 15px 0; } .container { background: #fff; border-radius: 10px; box-shadow: 0 14px 28px rgba(0, 0, 0, .25), 0 10px 10px rgba(0, 0, 0, .22); position: relative; overflow: hidden; width: 768px; max-width: 100%; min-height: 480px; } .form-container form { background: #fff; display: flex; flex-direction: column; padding: 0 50px; height: 100%; justify-content: center; align-items: center; text-align: center; } .form-container input { background: #eee; border: none; padding: 12px 15px; margin: 8px 0; width: 100%; } button { border-radius: 20px; border: 1px solid #DE584F; background: #DE584F; color: #fff; font-size: 12px; font-weight: bold; padding: 12px 45px; letter-spacing: 1px; text-transform: uppercase; transition: transform 80ms ease-in; } button:active { transform: scale(.95); } button:focus { outline: none; } button.ghost { background: transparent; border-color: #fff; } .form-container { position: absolute; top: 0; height: 100%; transition: all .6s ease-in-out; } .sign-in-container { left: 0; width: 50%; z-index: 2; } .sign-up-container { left: 0; width: 50%; z-index: 1; opacity: 0; } .overlay-container { position: absolute; top: 0; left: 50%; width: 50%; height: 100%; overflow: hidden; transition: transform .6s ease-in-out; z-index: 100; } .overlay { background: #ff416c; background: linear-gradient(to top, #DE584F, rgb(165, 56, 48)) no-repeat 0 0 / cover; color: #fff; position: relative; left: -100%; height: 100%; width: 200%; transform: translateY(0); transition: transform .6s ease-in-out; } .overlay-panel { position: absolute; top: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 0 40px; height: 100%; width: 50%; text-align: center; transform: translateY(0); transition: transform .6s ease-in-out; } .overlay-right { right: 0; transform: translateY(0); } .overlay-left { transform: translateY(-20%); } /* Move signin to right */ .container.right-panel-active .sign-in-container { transform: translateY(100%); } /* Move overlay to left */ .container.right-panel-active .overlay-container { transform: translateX(-100%); } /* Bring signup over signin */ .container.right-panel-active .sign-up-container { transform: translateX(100%); opacity: 1; z-index: 5; } /* Move overlay back to right */ .container.right-panel-active .overlay { transform: translateX(50%); } /* Bring back the text to center */ .container.right-panel-active .overlay-left { transform: translateY(0); } /* Same effect for right */ .container.right-panel-active .overlay-right { transform: translateY(20%); }