img {
    -ms-interpolation-mode: bicubic;
}
img {
    max-width: 300px;
    height: auto;
}
.recruit_gyomu_miryoku img {
    max-width: 168px;
    height: auto;
}
* html body img {
    width: expression(this.width >= this.height ? "168px" : "auto");
    height: expression(this.width <= this.height ? "auto" : "166px");
}