.single11 { height: 50px; width: 50px; border-radius: 50%; background-color: #EC644B; position: relative; -webkit-animation: single11anim 2s infinite ease-in-out; animation: single11anim 2s infinite ease-in-out; } @-webkit-keyframes single11anim { 0%, 100% { -webkit-filter: blur(0); filter: blur(0); } 50% { -webkit-filter: blur(15px); filter: blur(15px); } } @keyframes single11anim { 0%, 100% { -webkit-filter: blur(0); filter: blur(0); } 50% { -webkit-filter: blur(21px); filter: blur(15px); } }