body{
  background-color: white;
  font-family: sans-serif;

}

nav{
    text-align: center;
      
}

nav > a{
    color:#000;
    font-weight: 300;
    text-decoration: none;
    text-align: center;   
}

nav > a:hover{
    text-decoration: underline;
    text-align: center;
    
}
.container{
  margin: auto;
  background-color: silver;
  width: 700px;
  padding: 1px;
}

ul, li {
    padding: 0;
    margin: 0;
    list-style: none;
}

ul.slider{
  position: relative;
  width: 700px;
  height: 400px;
}

ul.slider li {
    position: absolute;
    left: 0px;
    top: 0px;
    opacity: 0;
    width: inherit;
    height: inherit;
    transition: opacity .5s;
    background:#fff;
    margin-right: auto;
    margin-left: auto;
   
}

ul.slider li img{
  width: 100%;
  height: 400px;
  object-fit: cover;
  margin-right: auto;
  margin-left: auto;

}

ul.slider li:first-child {
    opacity: 1; /*Mostramos el primer <li>*/
}

ul.slider li:target {
    opacity: 1; /*Mostramos el <li> del enlace que pulsemos*/
}

.menu{
  text-align: center;
  margin:10px;
}

.menu li{
  display: inline-block;
  text-align: center;
}

.menu li a{
  display: inline-block;
  color: white;
  text-decoration: none;
  background-color: grey;
  padding: 5px;
  width: 80px;
  height: 15px;
  font-size: 11px;
  border-radius: 10%;
}