ul.sidemenu li {
background: linear-gradient(90deg,rgba(28,82,234,1) 0%, rgba(243,138,44,1) 50%,rgba(255,222,39,1) 100%);
}
ul.sidemenu li:hover {
    background: linear-gradient(90deg, rgba(255,222,39,1) 0%, rgba(243,138,44,1) 50%,rgba(28,82,234,1) 100%);
}