<style>
/*Эффект для кнопки*/
.aboutme .tn-atom {
    background-image: linear-gradient(45deg , #FFD115 60%, #ff5959);
    box-shadow: 0 16px 32px 0 rgba(255, 141, 0, 0.35);
    background-position: 100% 0 !important;
    background-size: 200% 200%;
    transition: all 0.5s ease-in-out !important;
}
/*Эффект для кнопки*/
.aboutme .tn-atom:hover {
   box-shadow: 0 0 0 0 rgba(0,40,120,0);
   background-position: 0 0 !important;
}
</style> <style>
/*Эффект для кнопки*/
[href='#aboutme'] {
    background-image: linear-gradient(45deg , #FFD115 60%, #ff5959);
    box-shadow: 0 16px 32px 0 rgba(255, 141, 0, 0.35);
    background-position: 100% 0 !important;
    background-size: 200% 200%;
    transition: all 0.5s ease-in-out !important;
}
/*Эффект для кнопки*/
[href='#aboutme']:hover {
   box-shadow: 0 0 0 0 rgba(0,40,120,0);
   background-position: 0 0 !important;
}
</style>