.smothscroll{z-index:99;list-style:none;position:fixed;bottom:25px;right:30px}.smothscroll a{text-align:center;color:#00020f;background-color:#00ff97;background-position:0;background-size:200%,1px;border:2px solid #00ff97;border-radius:5px;width:40px;height:40px;line-height:40px;display:block}.smothscroll a:hover{color:#00020f;background-color:#00ff97}@media (max-width:767px){.smothscroll a{width:30px;height:30px;line-height:25px}}