[css]이미지 축소 시 화질 저하 감소

img[src$=".gif"], img[src$=".png"], img[src$=".jpg"] {
  image-rendering: -moz-crisp-edges; /* Firefox */
  image-rendering: -o-crisp-edges; /* Opera */
  image-rendering: -webkit-optimize-contrast;/* Webkit (non-standard naming) */
  image-rendering: crisp-edges;
  -ms-interpolation-mode: nearest-neighbor; /* IE (non-standard property) */
}