* {
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
}

body {
    background-color: #789;
    color: #EEE;
    font-family: verdana;
}

h1 {
    background-image: repeating-linear-gradient(-45deg,
    plum 0px,
    hotpink 10px,
    #234 10px,
    #234 40px,
    lime 40px,
    lime 50px);
    text-align: center;
    text-shadow: 0px 0px 4px #222;
    padding: 50px 10px;
}

#promotion_items, #section2, #section3 {
    border: 8px solid lightpink;
    min-height: 30svh; /* small viewport height.*/ 
    margin: 16px;
    position: relative;
}

.sale_item {
    width: 150px;
    height: 150px;
    margin: 10px;
    display: inline-block;
}

.mens {
    background-color: purple;
    transform: rotate(30deg) skewX(20deg);
    filter: grayscale(50%);
}

.womens {
    background-color: greenyellow;
    position: absolute; top: 10px; right: 10px;
}

.kids {
    background-color: palevioletred;

}
#section2 {
    display: flex;
    flex-flow: row wrap;
}

#section2 div {
    width: 200px;
    height: 200px;
    margin: 10px;
    background-color: palegreen;
    flex-grow: 1;
    flex-basis: 300px;
}

#section3 div {
    width: 150px;
    height: 150px;
    margin: 10px;
}

#redbox {
    background-color: red;
    position: absolute; top: 0px; left:0px;
    border-radius: 50%;
    border: 2px solid white;
}

#orangebox {
    position: absolute; bottom: 0px; right:0px;
    border-radius: 50%;
    border: 2px solid white;
    background-image: url(../images/space.jpg);
    background-position: center;
    background-size: cover;
}