.flex2{
    display: flex;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.item2{
    flex:1 1 calc(33.33% - 30px);
    /*margin:5px;*/
    box-sizing:border-box;
    min-width:300px;
    margin: -16px;
    padding:1px 1px; font-size:100%; text-align:left;
}

.flex1{
    display: flex;
    flex-wrap: wrap;
    max-width: 700px;
    margin: 0 auto;
}

.item1{
    flex:1 1 calc(33.33% - 30px);
    margin:5px;
    box-sizing:border-box;
    min-width:270px;
    padding:10px 20px; font-size:100%; text-align:left;
}

.reviews {
    margin: 50px;
}