How do I add this CSS to my marker in javascript

.marker {
    margin-top: 20px;
		margin-left: 30px;
		position: relative;
	}

	.pulse {
		width: 10px;
		height: 10px;
		border: 5px solid #ffb3b3;

		-webkit-border-radius: 30px;
		-moz-border-radius: 30px;
		border-radius: 30px;
		background-color: #ff4d4d;
		z-index: 10;
		position: absolute;
	}

	.dot {
    position: absolute;
    height: 50px;
		width: 50px;
		top: -25px;
		left: -25px;
		z-index: 2;
		opacity: 0;
		border: 10px solid #ffe6e6;;
		background: transparent;
		-webkit-border-radius: 60px;
		-moz-border-radius: 60px;
		border-radius: 60px;
		-webkit-animation: flash 2s ease-out;
		-moz-animation: flash 2s ease-out;
		animation: flash 2s ease-out;
    -webkit-animation-iteration-count: infinite;
		-moz-animation-iteration-count: infinite;
		animation-iteration-count: infinite;
	}

  @-moz-keyframes pulse {
	 0% {-moz-transform: scale(0);opacity: 0.0;}
	 25% {-moz-transform: scale(0);opacity: 0.1;}
	 50% {-moz-transform: scale(0.1);opacity: 0.3;}
	 75% {-moz-transform: scale(0.5);opacity: 0.5;}
	 100% {-moz-transform: scale(1);opacity: 0.0;}
  }

  @-webkit-keyframes "flash" {
	 0% {-webkit-transform: scale(0);opacity: 0.0;}
	 25% {-webkit-transform: scale(0);opacity: 0.1;}
	 50% {-webkit-transform: scale(0.1);opacity: 0.3;}
	 75% {-webkit-transform: scale(0.5);opacity: 0.5;}
	 100% {-webkit-transform: scale(1);opacity: 0.0;}
	}

function codeAddress() {
    var address = document.getElementById('address').value;
    geocoder.geocode( { 'address': address}, function(results, status) {
      if (status == 'OK') {
        map.setCenter(results[0].geometry.location);
        var marker = new google.maps.Marker({
          //animation: google.maps.Animation.BOUNCE,

            map: map,
            icon: {
          path: google.maps.SymbolPath.CIRCLE,
          scale: 8.5,
          fillColor: "#ff0000",
          fillOpacity: 0.6,
          strokeWeight: 0.4,

      },
            position: results[0].geometry.location
        });
      } else {
        alert('Geocode was not successful for the following reason: ' + status);
      }
    });
  }