body, header, nav, main, footer, h1, div, img, ul, figure, figcaption, section, article, aside {
    margin: 0;
    padding: 0;
    border: 0;
}

body{
    background-color: orange;
}

img{
    max-width: 100%;
    display: block;
}

*{
    box-sizing: border-box;
}

header{
    top: 0;
    background-color: white;
    height: 190px;
}

header img{
    margin: 0 auto;
}

nav {
    padding: 1%;
    margin-bottom: 1%;
    background-color: orange;
    display: inline-block;

}

nav ul{
    list-style-type: none;
    text-align: center;
}

nav li{
    font-size: 1.5em;
    font-family: 'Lucida Sans';
    border-top: 1px solid #fff;
}

nav li a{
    display: block;
    color: purple;
    padding: .5em 1em;
    text-decoration: none;
}

.mobile{
    display: block;
}

.tablet-desktop{
    display: none;
}

main{
    background-color: black;
    padding: 2%;
    font-size: 1.15em;
    font-family: 'Roboto slab', serif;
}

.mobile h3{
    text-shadow: 5px 5px 8px #ccc;
}
article{
    padding: 2%;
    color: white;
}

article h3{
    text-align: center;
}

article img{
    margin: 0 auto;
}

article ul{
    margin-left: 10%;
}

article:nth-of-type(2){
    background-color: rgba(204,204,204,.3);
}
.round{
    border-radius: 8px;
}
footer p{
    font-size: .75em;
    text-align: center;
    color: #fff;
    padding: .1em;
}


@media screen and (min-width:630px), print{
    .tablet-desktop{
        display: block;
    }

    .mobile{
        display: none;
    }

    header{
        padding-bottom: 2%;
    }

    nav li{
        border-top: none;
        display: inline-block;
        border-radius: 1px solid #fff;
    }

    nav li:last-child{
        border-radius: none;
    }

    nav li a{
        padding: .1em .75em;
    }

    main ul{
        margin: 0 0 4% 10%;
    }

    .grid{
        display: grid;
        grid-template-columns: auto auto auto;
        grid-gap: 20px;
    }

    aside{
        text-align: center;
        font-size: 1.25em;
        font-style: italic;
        font-weight: bold;
        padding: 2%;
        background-color: purple;
        box-shadow: 5px 5px 8px #000;
        text-shadow: 5px 5px 5px #b3b3b3;
        border-radius: .15px;
    }

    .grid-item4{
        grid-column: 1/ span 3;
    }
}

@media screen and (min-width:1015px), print{
    header{
        width: 25%;
        float: left;
        padding-bottom: 0;
    }

    nav {
        width: 70%;
        margin: 4em 1em 0 0;
    }

    nav ul{
        text-align: center;
    }

    nav li{
        border: 5px solid black;
    }

    nav li a{
        padding: .5em 1em;
    }

    nav li a:hover{
        color: #000;
        background-color: #fff;
    }

    main{
        clear: left;
    }

    main h1{
        font-size: 1.8em;
    }

    article h3{
        font-size: 1.75em;
    }
}

@media screen and (min-width:1921px) {
    #container{
        width: 1920px;
        margin: 0 auto;
    }
}

@media print {
    body{
        background-color: #fff;
        color: #000;
    }
}