body {
	padding: 0;
	margin: 0;
	width: 90%;
	max-width: 800px;
	margin: auto;
}

ul {
    padding-left: 0;
}
#fixed-size-grid-items li{
    list-style-type: none;
    display: inline-block;
    font-size: 0.8rem;
}

#fixed-size-grid-items aside {
    width: 170px;
    margin: 10px;
}



#stretchable-grid-items aside{
    margin: 10% 10%;
    font-size:0.8rem;
}
#stretchable-grid-items li{
    width:100%;
    list-style:none;
    display:inline-block;
}
#stretchable-grid-items ul{
    margin-left:-10px;
    margin-right:-10px;
    margin-top:1rem;
    margin-bottom:1rem;
}

@media (min-width:640px) {
    body {
        background-color: #eaf6ff;
    }
}

@media (max-width:500px) {
    h1 {
        font-size: 1.5rem;
    }
}


@media (min-width:640px) {
    h1 {
        font-size: 2.5rem;
    }
}

@media (min-width:480px){
    #stretchable-grid-items li{
     width:50%;
    }
}
@media (min-width:640px){
    #stretchable-grid-items li{
     width:25%;
    }
}