刚刚发布了这个网站(http://dovidoved.org/), 客户想在每个下拉菜单的顶部加上一个三角形/箭头。问题是菜单周围有边框,箭头应该与背景和边框融合。不确定如何实现。有建议吗?必须使用图片吗?以下是我的CSS代码:
/* creates triangle */
.main-navigation ul ul:before {
border-bottom: 10px solid #fae0bb;
border-left: 10px solid transparent;
border-right: 10px solid transparent;
content: "";
height: 0;
position: absolute;
right: 0;
top: -10px;
width: 0;
}
.main-navigation ul ul {
background: #fae0bb;
border: 8px solid #fffefe;
box-shadow: 0 3px 3px rgba(0, 0, 0, 0.2);
float: left;
position: absolute;
margin: 0;
top: 2.8em;
left: -999em;
width: 200px;
z-index: 99999;
}
:after
伪元素添加边框 http://jsfiddle.net/ond3g1jp/ - Vitorino fernandes