.shirt-image {
    margin: 0 auto;
    width: 5em;
    display: block;
    height: 6em;
    background-repeat: no-repeat;
    background-size: contain;
}

.img1 {
    background-image: url(../00_data/honbun/L5_part1_honbun/me1_shirt_a.png);
}

.img2 {
    background-image: url(../00_data/honbun/L5_part1_honbun/me1_shirt_b.png);
}

.img3 {
    background-image: url(../00_data/honbun/L5_part1_honbun/me1_shirt_c.png);
}