* {
    padding: 0;
    margin: 0;
}

html, body {
    height: 100%;
    padding: 20px;
    background-color: lightgray;
}

body {
    display: flex;
    justify-content: space-around;
}

.maior {
    width: 52%;
    height: 60%;
    background-color: gray;
}

.menor { 
    width: 45%;
    height: 60%;
    background-color: gray;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.img {
    width: 49%;
    height: 48%;
    background-color: yellow;
}