已解决，可以通过.gc-corner-triangle-normal来进行设置
.gc-corner-triangle-normal {
background-color: #212d02;
background-image: -webkit-linear-gradient(top, #212d02 12.5%, #212d02); /* For Chrome and Safari */
background-image: -moz-linear-gradient(top, #212d02 12.5%, #212d02); /* For old Fx (3.6 to 15) */
background-image: -ms-linear-gradient(top, #212d02 12.5%, #212d02); /* For pre-releases of IE 10*/
background-image: -o-linear-gradient(top, #212d02 12.5%, #212d02); /* For old Opera (11.1 to 12.0) */
background-image: linear-gradient(to bottom, #212d02 12.5%, #212d02); /* Standard syntax; must be last */
border-style: solid;
border-left-color: #212d02 !important;
border-right-color: #212d02 !important;
border-top-color: #212d02 !important;
border-bottom-color: #212d02 !important;
} |
