body {
  background: #e5e5e5;
}

.pane {
  width: 150px;
  height: 140px;
  margin: 50px auto;
  position: relative;
}

.bell {
  width: 100%;
  height: 100%;
  background: #c5c5c5;
  border-radius: 100px 100px 0 0;
  position: relative;
  -webkit-transition: all 1s;
  -webkit-transform: translateZ(0);
}

.bell:after {
  content: "";
  background: #c5c5c5;
  width: 116%;
  height: 10%;
  position: absolute;
  bottom: 0;
  left: -8%;
  border-radius: 20px;
}

.bell:before {
  content: "";
  background: #e5e5e5;
  width: 20%;
  height: 20%;
  top: -16%;
  left: 50%;
  margin-left: -10%;
  position: absolute;
  border-radius: 100%;
  box-shadow: inset 0 0 0px 7px #c5c5c5;
  z-index: -1;
}

.tail {
    content: "";
    position: absolute;
    width: 30%;
    height: 30%;
    background: #adadad;
    bottom: -12%;
    left: 50%;
    margin-left: -15%;
    border-radius: 100%;
    z-index: -1;
    overflow: hidden;
}

.tail:after {
    content: "";
    position: absolute;
    width: 50%;
    height: 100%;
    left: 50%;
    background: #909090;
}

.face {
    background: #909090;
    width: 25%;
    height: 25%;
    position: absolute;
    left: 50%;
    bottom: 20%;
    border-radius: 100%;
    margin-left: -12%;
}

.face:before {
    content: "";
    background: #c5c5c5;
    height: 50%;
    width: 100%;
    top: 0;
    position: absolute;    
}

.left-eye, .right-eye {
    display: block;
    width: 10px;
    background: #909090;
    height: 10px;
    z-index: 6;
    position: absolute;
    border-radius: 100%;
    top: -12px;
}

.left-eye {
    left: -15px;
}

.right-eye {
    right: -15px;
}

.bell:hover .left-eye, .bell:hover .right-eye {
    width: 18px;
    height: 15px;
    top: -5px;
    box-shadow: 0 0 0 5px #909090;
    background: #c5c5c5;
}

.bell:hover .left-eye {
    left: -18px;
}

.bell:hover .right-eye {
    right: -18px;
}

.bell:hover .left-eye:before, .bell:hover .right-eye:before {
    content: "";
    position: absolute;
    width: 5px;
    height: 5px;
    border-radius: 100%;
    background: #909090;
    top: 15%;
    left: -5px;
    z-index: 7;
    box-shadow: 23px 0 0 0 #909090;
}

.bell:hover .left-eye:after, .bell:hover .right-eye:after {
    content: "";
    position: absolute;
    background: #c5c5c5;
    top: 40%;
    left: -50%;
    width: 200%;
    height: 100%;    
}

@-webkit-keyframes ringing {
    25% {-webkit-transform: rotate(5deg);}
    75% {-webkit-transform: rotate(-5deg);}
}

@-moz-keyframes ringing {
    25% {-moz-transform: rotate(5deg);}
    75% {-moz-transform: rotate(-5deg);}
}

.bell:hover {
    -webkit-animation: ringing 0.5s infinite;
    -moz-animation: ringing 0.5s infinite;
}

.bell:hover .face {
    height: 30%;
    /*top: 52%*/
}