div#container { width : 500px; background-color : #FFFFFF; margin : auto; font-family: "Open Sans","lucida grande","Segoe UI",arial,verdana,"lucida sans unicode",tahoma,sans-serif; font-size: 13px; color: #3d464d; font-weight: normal; } h1 { font-size: 28px; text-align: center; color: #168eef; } .titre { font-size: 24px; font-weight: normal; margin-bottom: 10px; } .msg { font-size: 18px; } #email { border: 1px solid #bdc4c9; font-size: 16px; padding: 5px 6px; width: 100%; min-height: 34px; line-height: normal; border-radius: 3px; box-sizing: border-box; margin-top: 20px; margin-bottom: 20px; } input.submit { float: right; width : 100px; background: linear-gradient(#168eef, #007ee5); border: 1px solid #0c6ebe; border-radius: 3px; text-align: center; font-size: 13px; font-weight: 600; color: white; margin: 2px 0 5px; min-height: 34px; margin-top: 16px; padding: 6px 16px; cursor: pointer; }