Edit on
<img src="https://lh3.googleusercontent.com/S6R3hlIIAUcaGWKadN2mp8myRdFDBFiS3TlLM4NMSSvzE49cMFin_ODX-W69biYjPrISBsvgtuhoYX-87AkXsEe1tgNc5hb2SH47aGM6EkWFyoy8xup8VDqv9g">
img{
   -webkit-filter: contrast(250%);
  filter: contrast(250%);
}

img:hover{
  -webkit-filter: contrast(100%);
  filter: contrast(100%);
}
Rerun