body{
    font-family: Arial,sans-serif;
    margin: 0;
    padding: 0;
    background-color: lightgrey;
}
  
.container2{
    margin: auto;
    background-color: white;
    width: 350px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

  
ul, li {
    padding: 0;
    margin: 0;
    list-style: none;
}
  
ul.slider {
    position: relative;
    width: 350px;
    height: 350px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto;
}
  
ul.slider li {
    position: absolute;
    opacity: 0;
    width: inherit;
    height: inherit;
    transition: opacity .5s;
    background: #fff;
    text-align: center;
}
  
ul.slider li img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
  
ul.slider li:first-child {
    opacity: 1;
}
  
ul.slider li:target {
    opacity: 1;
}
  
.menu{
    text-align: center;
    margin: 20px;
}
  
.menu li{
    display: inline-block;
    text-align: center;
}
  
.menu li a{
    display: inline-block;
    color: white;
    text-decoration: none;
    background-color: grey;
    padding: 10px;
    width: 20px;
    height: 20px;
    font-size: 20px;
    border-radius: 100%;
}