main.css

html{
	font-size: 12px;
	font-family: "Times New Roman", fantasy;
}

body{
	background: darkgrey;
}

#all{
    position: relative;
    top: 0;
    left: 0;

	padding: 6px;
	display: block;
	width: 75%;
	margin: 0 auto;
	text-align: center;
	background: white;
	height: 100%;
	box-shadow: 0 0 5px black;
	border-radius: 2em 2em 2em 2em;
}

main, header, footer{
	font-size: 2em;
	margin: 0 auto;
	width: 50%;
	color: black;
	/*text-shadow: 0.5px 0.5px 1px black;*/
	font-style: italic;
}

header a, header a:focus, header a:hover, header a:active, header a:visited{
    color: black;
    text-decoration: none;
}

header figure{
    position: absolute;

    width: 4em;
    height: 4em;
    max-width:100%;
}

header figure img{
    position: absolute;

    width: 4em;
    height: 4em;
    max-width:100%;
    top: 0;
}

#gnu{
    top: 0;
    left: 0;
}

#tux{
    top: 0;
    right: 0;
}

#gnu img{
    left: 0;
}

#tux img{
    width: 3em;
    height: 3em;
    right: 0;
}

main article{
	font-style: normal;
	text-align: justify;
}

h2{
	font-size: 0.9em;
}

#linuxdistros{
	display: inline-block;
	/*margin: 0 0 3em 0;*/
	margin: 0 auto;
	text-align: center;
	padding: 5px;
	width: 100%;
}

#linuxdistros tr{
    margin: 0 auto;
    text-align: center;

    padding: 0;
    list-style: none;

    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;

    width: 100%;

    -webkit-flex-flow: row wrap;
    justify-content: space-around;
    align-items: center;
}

#linuxdistros tr td{
    padding: 5px;
    width: 2em;
    height: 2em;
    margin: 0 auto;

    line-height: 150px;
    color: white;
    font-weight: bold;
    font-size: 3em;
    text-align: center;
}

#linuxdistros tbody{
    display: block;
    width: 100%;
    margin: 0 auto;
}

#linuxdistros tr td img{
    max-width: 2em;
    max-height: 2em;
    min-width: 0.01em;
    min-height: 0.01em;
    margin: 0 auto;
    text-align: center;
}

.dl{
    text-align: left;
}

@media only screen and (max-width: 700px){
	*{
		transition-duration: 0.5s;
	}
	#all{
		width: 98%;
	}
	main, header, footer{
		width: 90%;
	}

	h1{
		font-size: 1.5em;
		transition-duration: 0.2s;
		font-style: italic;
	}
	main > header{
		font-size: 1.4em;
	}
	h2{
		font-size: 0.8em;
	}
	header, footer{
		width: 50%;
	}
	html{
		font-size: 0.5em;
	}
}
@media only screen and (max-width: 480px){
	*{
		transition-duration: 0.5s;
	}
	#all{
		width: 98%;
        font-size: 0.8em;
	}
	main, header, footer{
		width: 90%;
	}

    main{
        width: 68%;
    }

	h1{
		font-size: 1em;
		transition-duration: 0.2s;
	}
	main > header{
		font-size: 0.9em;
	}
    header figure img, header figure{
        width: 3em;
        height: 3em;
    }
    #tux img{
        width: 2.5em;
        height: 2.5em;
    }
	h2{
		font-size: 0.7em;
	}
	header, footer{
		width: 50%;
	}
	html{
		font-size: 0.5em;
	}
}
@media only screen and (max-width: 380px){
	*{
		transition-duration: 0.5s;
    }
    h1{
        font-size: 1.2em;
    }
	#all{
		width: 98.05%;
	}
}
@media only screen and (min-width: 2000px){
	*{
		transition-duration: 0.5s;
	}
	#all{
        font-size: 2em;
	}
}