body{background: black;}.button-offer{background-color: #FF1C32; -webkit-border-radius: 10px; border-radius: 10px; border: none; color: #FFFFFF; cursor: pointer; display: inline-block; font-family: Arial; font-size: 20px; padding: 18px 38PX; border: dotted 5px; border-color: #a9ff00; text-align: center; text-decoration: none;}@-webkit-keyframes glowing{0%{background-color: #B20000; -webkit-box-shadow: 0 0 3px #B20000;}50%{background-color: #FF0000; -webkit-box-shadow: 0 0 40px #2A0959;}100%{background-color: #B20000; -webkit-box-shadow: 0 0 3px #B20000;}}@-moz-keyframes glowing{0%{background-color: #B20000; -moz-box-shadow: 0 0 3px #B20000;}50%{background-color: #FF0000; -moz-box-shadow: 0 0 40px #2A0959;}100%{background-color: #B20000; -moz-box-shadow: 0 0 3px #B20000;}}@-o-keyframes glowing{0%{background-color: #B20000; box-shadow: 0 0 3px #B20000;}50%{background-color: #FF0000; box-shadow: 0 0 40px #2A0959;}100%{background-color: #B20000; box-shadow: 0 0 3px #B20000;}}@keyframes glowing{0%{background-color: #B20000; box-shadow: 0 0 3px #B20000;}50%{background-color: #3f2362; box-shadow: 0 0 10px #a9ff00;}100%{background-color:#2A0959; box-shadow: 0 0 3px #2A0959;}}.button-offer{-webkit-animation: glowing 1500ms infinite; -moz-animation: glowing 1500ms infinite; -o-animation: glowing 1500ms infinite; animation: glowing 1500ms infinite;}