your color variable is not included in the CSS code. so use background instead of background-color . that's it. * { box-sizing: border-box; } ... ... <看更多>

En este video te explico a detalle como crear un efecto hover muy bonito y fácil de hacer . Recuerda ver los anteriores videos para que ... ... <看更多>

河道語法整理.css ... :before :after 偽元素，:before 是icon，:after 是icon 的背景. */. /**雪花**/. /*下雪範圍*/ ... text-decoration: none; /*文字效果(底線)*/. ... <看更多>

Often times people will use border-bottom: 1px solid in favor of text-decoration: underline to give their links some breathing room. ... <看更多>