잘 모르는 CSS 1

box-shadow

 

text-shadow

 

linear-gradient

 

radial-gradient

 

filter: blur(5px)

filter: brightness(0.5);

filter: contrast(150%);

filter: grayscale(100%);

filter: hue-rotate(180deg);

filter: invert(100%);

filter: saturate(1.5);

filter: sepia(100%);