Моргающий значек

        #p_11{
            position: relative;
        }
       #p_11:after{
        position: absolute;
        top: -19px;
        width: 30px;
        height: 30px;
        content:url('https://texrio.ru/upload/new32.png');
        opacity: 1;

  animation-name: blinker;
  animation-iteration-count: infinite;
  animation-timing-function: cubic-bezier(1.0,0,0,1.0);
  animation-duration: 2s;
  -webkit-animation-name: blinker;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-timing-function: cubic-bezier(1.0,0,0,1.0);
  -webkit-animation-duration: 2s;
}

@keyframes blinker {
  from { opacity: 1.0; }
  to { opacity: 0.0; }
}

@-webkit-keyframes blinker {
  from { opacity: 1.0; }
  to { opacity: 0.0; }
       }