a { text-decoration: none;//去掉下划线 color: inherit; -webkit-user-select: none; -moz-user-select: none; user-select: none; -webkit-appearance: none; -webkit-text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); -webkit-touch-callout: none; border-bottom: none;//去掉下边框(用text-decoration: none;没有用是时候加上); display: block; 100%; height: 40px; }