*{
    box-sizing: border-box;
}

:root{

}

body{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    margin: 0px;
    padding: 0px;
}

header{
    background-color: black;
    color: white;
    text-align: center;
    font-size: 1.5em;
    text-transform: capitalize;
    height: 7vh;
}

main{
    display: grid;
    grid-template-columns: 20% 80%;
    width: 70vw;
    margin: auto;
}

main>nav{
    background-color: gainsboro;
    color: black;
}

main>nav ul{
    margin: 0px;
    padding: 0px;
    list-style: none;
}

main>nav ul li a{
    display: block;
    color: black;
    padding: 8px;
    text-decoration: none;
    border-bottom: 1px solid gray;
}

.grilla{
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0px;
    margin: 0px;
    gap: 15px;
    padding: 10px;
}

.grilla li{
    display: block;
    width: calc((100% / 4) - 15px) ;
    border: 1px solid salmon;
    border-radius: 4px;
    padding: 10px;
    line-height: 1.3em;
}

.grilla li img{
    width: 100%;
}

iframe{
    width: 100%;
    height: 700px;
}

#dialog-message{
    display: none;
}