.fatbtn { border: none; color: #c1c1c1; text-align: center; text-decoration: none; display: inline-block; padding: 2px; border-radius: 4px; filter: grayscale(1); } .fatbtn:hover { background-color: #3598DB; color: white; filter: grayscale(0); } .fatbtn:hover:after { content: " Open in FAT"; }