.body {
    background-color: yellow;
}

.wrapper {
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 1em;
}

.nested {
    display: grid;
    grid-template-columns: 50% 50%;
    grid-auto-rows: 70px;
    grid-auto-rows: minmax(100px, auto);
}

.lists {
    display: grid;
    grid-template-columns: 50% 50%;
    grid-auto-rows: 70px;
    grid-auto-rows: minmax(100px, auto);
}

.lists h2 {
    text-align: center;
}

h1 {
    text-align: center;
}

.times {
    text-align: center;
}

.yield {
    text-align: center;
    font-size: 30px;
}

.total {
    font-size: 30px;
}

.wrapper > div {
    background-color: orange;
    padding: 1em;
}

.nested > div {
    border: #333 1px solid;
    width: 570px;
    padding: 1em;
}

.lists > div {
    border: #333 1px solid;
    width: 570px;
    padding: 1em;
}

img {
    width: 1260px;
}

#stretch {width: 100%;}
    @media (min-width: 640px){
        #stretch {width: 50%;}
    }
    @media (max-width: 480px){
        .lists h2 {
            text-align: center;
        }
        
        h1 {
            text-align: center;
        }
        
        .times {
            text-align: center;
        }
        
        .yield {
            text-align: center;
            font-size: 30px;
        }
        
        .total {
            font-size: 30px;
        }
        
        .wrapper {
            display: grid;
            grid-template-rows: 1fr;
            grid-gap: 1em;
        }
        
        .nested {
            display: grid;
            grid-template-rows: 50% 50%;
            grid-auto-columns: 70px;
            grid-auto-columns: minmax(100px, auto);
        }
        
        .lists {
            display: grid;
            grid-template-rows: 50% 50%;
            grid-auto-columns: 70px;
            grid-auto-columns: minmax(100px, auto);
        }
        
        .wrapper > div {
            background-color: orange;
            padding: 1em;
        }
        
        .nested > div {
            border: #333 1px solid;
            width: 570px;
            padding: 1em;
        }
        
        .lists > div {
            border: #333 1px solid;
            width: 570px;
            padding: 1em;
        }
        
        img {
            width: 630px;
        }