.button_blink {
  background-color: /*#004A7F*/#1B924E;
  -webkit-border-radius: 10px;
  border-radius: 10px;
  border: none;
  color: #FFFFFF;
  cursor: pointer;
  /*display: inline-block;*/
  font-family: Arial;
  font-size: 20px;
  padding: 35px 50px 55px 50px;
  text-align: center;
  text-decoration: none;
  -webkit-animation: glowing 1500ms infinite;
  -moz-animation: glowing 1500ms infinite;
  -o-animation: glowing 1500ms infinite;
  animation: glowing 1500ms infinite;
}
@-webkit-keyframes glowing {
  0% { background-color: /*#B20000*/ #1B924E; -webkit-box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
  50% { background-color: #FF0000; -webkit-box-shadow: 0 0 40px #FF0000; }
  100% { background-color: /*#B20000*/ #1B924E; -webkit-box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
}

@-moz-keyframes glowing {
  0% { background-color: /*#B20000*/ #1B924E; -moz-box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
  50% { background-color: #FF0000; -moz-box-shadow: 0 0 40px #FF0000; }
  100% { background-color: /*#B20000*/ #1B924E; -moz-box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
}

@-o-keyframes glowing {
  0% { background-color: /*#B20000*/ #1B924E; box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
  50% { background-color: #FF0000; box-shadow: 0 0 40px #FF0000; }
  100% { background-color: /*#B20000*/ #1B924E; box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
}

@keyframes glowing {
  0% { background-color: /*#B20000*/ #1B924E; box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
  50% { background-color: #FF0000; box-shadow: 0 0 40px #FF0000; }
  100% { background-color: /*#B20000*/ #1B924E; box-shadow: 0 0 3px /*#B20000*/ #1B924E; }
}