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HTML

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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <ul class="acordeon">
  <li>
    <h4>Yecla</h4>
    <a href="#">
      <img src="https://1.bp.blogspot.com/-na8syCqA5QM/U2Y0MkeZeFI/AAAAAAAAPyA/5C7WeCVpcyE/s900/yecla.jpg"/>
    </a>
  </li>
  <li>
    <h4>Ricote</h4>
    <a href="#">
      <img src="https://3.bp.blogspot.com/-0VLtdXRmROw/U2Y0MBkDjKI/AAAAAAAAPx8/2WHDkLKpo3g/s900/ricote.jpg"/>
    </a>
  </li>
  <li>
    <h4>Bullas</h4>
    <a href="#">
      <img src="https://4.bp.blogspot.com/-dx4GDtQCuCY/U2Y0LT8IlRI/AAAAAAAAPxo/4XW_d21QrMk/s900/bullas.jpg"/>
    </a>
  </li>
  <li>
    <h4>Jumilla</h4>
    <a href="#">
      <img src="https://4.bp.blogspot.com/-8vVOgYUvpRA/U2Y0LTWXwFI/AAAAAAAAPxs/HPnmp59MYtk/s900/jumilla.jpg"/>
    </a>
  </li>
  <li>
    <h4>Abanilla</h4>
    <a href="#">
      <img src="https://4.bp.blogspot.com/-yyHs3e39Tsg/U2Y0LHHoRmI/AAAAAAAAPxk/TnqknfWjR0s/s900/abanilla.jpg"/>
    </a>
  </li>
</ul>
!

CSS 

              
                /* Ajustes generales */
html, body {
  margin: 0;
  padding:0;
  background: #ccc;
}
ul.acordeon * {
  font-family: Arial, sans-serif;
  -webkit-transition: all .6s ease-in-out;
  -moz-transition: all .6s ease-in-out;
  transition: all .6s ease-in-out;
}
/* Contenedor general */
ul.acordeon {
  width: 100%; /* Personalizar sncho total */
  overflow: hidden;
  padding: 0;
  background: #8F2250;
  text-align: center;
  list-style: none;
  font-size: 0;
  box-shadow: 0 0 10px #333;
}
/* Cada elemento */
ul.acordeon li {
  position: relative;
  display: inline-block;
  *display: inline; zoom: 1; /* IE7 */
  width: 10%; 
  height:0;
  padding-bottom: 40%; /* Ratio aspecto imagen = (height*X)/width */
  background: #eee;
  text-align: center;
  box-shadow: -2px 0px 8px #999;
}
/* Títulos pestañas */
ul.acordeon li h4 {
  position: relative;
  top: 5%;
  z-index: 1;
  margin: 0;
  font-size: 18px;
  text-align: left;
  text-transform: uppercase;
  -webkit-transform: rotate(90deg);
  -moz-transform: rotate(90deg);
  transform: rotate(90deg);
  -webkit-transform-origin: 10% 120%;
  -moz-transform-origin: 10% 120%;
  transform-origin: 10% 120%;
  white-space: nowrap;
}
/* Contenido inicialmente oculto */
ul.acordeon li a, ul.acordeon li img {
  position: absolute;
  bottom: 0;
  right: 0;
  display: inline-block;
  *display: inline; zoom: 1; /* IE7 */
  width: 0;
  padding:0;
  background: #333;
}
/* Hover: Desplegamos elemento aumentando su ancho */
ul.acordeon li:hover {
  width: 60%; /* 100 - 10*(nºelem-1) // X=60 para ratio imagen */ 
  background: #333;
}
/* Hover: Hacemos que el título recupere la horizontal y le ponemos un fondo */
ul.acordeon li:hover h4 {
  padding-left: 10px;
  background: rgba(143,34,80,.8);
  color: #eee;
  -webkit-transform: none;
  -moz-transform: none;
  transform: none;
}
/* Hover: Expandimos el contenido */
ul.acordeon li:hover a, ul.acordeon li:hover a img {
  width: 100%; 
}
/* Ajustes para resoluciones pequeñas */
@media(max-width:600px) {
  ul.acordeon li h4 {
    font-size: 12px;
    letter-spacing: 1px;
  }
}

/* VARIACIONES PARA CONSEGUIR QUE EL MENU OCUPE INICIALMENTE TODO EL ANCHO 
ul.acordeon li {
  width: 20%;
}
ul.acordeon:hover li {
  width: 10%;
}
ul.acordeon li:hover {
  width: 60%;
}
*/
!

JS
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999px

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