
.option_item{
    display: flex;
    flex-wrap: wrap;
}
.option_item li{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content:center;
    flex: 0 0 50%;
    margin-bottom: 20%;
}
.option_item li img{
    max-width: 55%;
}
.option_item li img.selected{
    border: 1px solid #ff0000;
    border-radius: 50%;
}
