*{
    box-sizing: border-box;
}
body{
    background-color: rgb(255, 255, 255);}
body>main>div>:first-child{
    background-image: url(../html/imagenes/portada.jpg);
}

.imagenes{
    display: block;
    width: 500px;
    height: 500px;
    border: 35px;
    border-radius: 10%;
    border-color: rgb(244, 244, 247);
    box-shadow: 18px 13px 44px 25px rgba(40,71,150,0.75);
    -webkit-box-shadow: 18px 13px 44px 25px rgba(40,71,150,0.75);
    -moz-box-shadow: 18px 13px 44px 25px rgba(40,71,150,0.75);
    width: 500px;
    margin: auto;
    padding: 0px;
   
    
}
body>main li a{
    display:grid;
    grid-template-columns: 1fr 1fr;
    
    padding: 2px;
}