.bar {
  background: #FF0000;
  height: 14px;
  width:5px;
  margin-left: 1px;
  margin-top: -2px;
  float: left;
  transition-property: height;
  transition-duration: 1s;
  transition-timing-function: ease-in-out;
  -moz-animation: move 1s infinite ease-in-out;
  -webkit-animation: move 1s infinite ease-in-out;
}

@-moz-keyframes move {
0% {
        -moz-transform: scaley(0.9);
    }

    100% {
        -moz-transform: scaley(0.2);
    };
}

@-webkit-keyframes move {
  0% {
        -webkit-transform: scaley(0.9);
    }

    100% {
        -webkit-transform: scaley(0.2);
    };
}