.float-btn{position: fixed;z-index: 999;bottom: 30px;right: 15px;max-width: 220px;transition: all 0.2s;}.float-btn:not(:hover){animation-name: zoom;animation-duration: 1.5s;animation-iteration-count: infinite;}@keyframes zoom {0% {max-width: 205px;}50% {max-width: 220px;}100% {max-width: 205px;}}@media only screen and (max-width: 768px){.float-btn{bottom: 1%;right: 2.5%;left: 2.5%;max-width: 100%;width: 95%;transition: all 0.2s;background-color: red;}.float-btn:not(:hover){animation-duration: 1s;}@keyframes zoom {0% {background-color: red;}50% {background-color: var(--themeSoftBlack);}100% {background-color: red;}}}