.iconbtn .tn-atom::after { content: ''; background-image: url('https://static.tildacdn.com/tild3264-6231-4637-b331-656534343863/file-icons_telegram.svg'); width: 17px; height: 17px; top: -2px; margin-left: 8px; display: inline-block; background-size: cover; background-repeat: no-repeat; vertical-align: middle; position: relative; transition: 0.2s ease; } .iconbtn:hover .tn-atom::after { content: ''; background-image: url('https://static.tildacdn.com/tild3264-6231-4637-b331-656534343863/file-icons_telegram.svg'); width: 17px; height: 17px; top: -2px; margin-left: 8px; display: inline-block; background-size: cover; background-repeat: no-repeat; vertical-align: middle; position: relative; transform: rotate(0deg); transition: 0.2s ease; }