bootstrap的button按钮点击之后会有蓝色边框怎么解决??
.btn:focus,.btn:active:focus, .btn.active:focus,.btn.focus, .btn:active.focus,.btn.active.focus { outline: none; border-color: transparent; box-shadow:none; }
.btn:focus,.btn:active:focus, .btn.active:focus,.btn.focus, .btn:active.focus,.btn.active.focus { outline: none; border-color: transparent; box-shadow:none; }