Question

我想在所选菜单项下方显示一个小三角形（类似于我的标签框）。我尝试了各种不成功的事情，请参阅http://jsfiddle.net/7zRVU/1/ 我怎么能这样做？非常感谢

nav {
    float: right;
    margin: 20px auto;
    width: 100%;
}
nav ul {
    margin-right: -4px;
    margin-left: 5px;
    text-align: right;
    }
nav ul li {
    display: inline-block;
    margin-right: -4px;
    margin-left: 5px;
    vertical-align: top;
}
nav a {
    padding: 4px 8px;
    text-decoration: none;
    color: rgba(255,255,255,1) !important ; 
    background: rgba(0,0,0,0.25);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 14px;
    font-weight: 400;

}


nav a:hover {
    background: rgba(0,0,0,0.35) !important ; 
}
.activeNav {
    background: rgba(0,0,0,0.35) !important ; 
}
nav ul li ul {
    position: absolute;
    display: block;
    margin-top: 5px;

    background: none;
    padding-top: 5px
}
nav ul li ul li {
    display: block;
    float: none;
    margin: 0;
    padding: 0
}
nav ul li ul li a {
    display: block;
    text-align: left;
    color: rgba(255,255,255,0.9) !important ; 
    text-shadow: 0 1px rgba(0,0,0,0.33) !important ; 
    padding: 10px
}
nav ul li ul li a:hover {
    background: rgba(20,150,220,0.5) !important ; 
    color: white;
    text-shadow: 0 1px rgba(0,0,0,0.5)
}
.hover a {
    display: block;
}
.hover span {
    color: rgba(255,255,255,0.9);
    background: rgba(20,150,220,0.5);
    border-radius: 5px;
    position: absolute;
    display: block;
    margin: 5px 0 0 -57px;
    padding: 10px;
    font-size: 13px;
    font-weight: 300;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-align: center;
    cursor: default;
}

li.selected a{
    border-bottom: 1px solid rgba(16,65,145,0.9);

}


li.selected a:after {
  top: 100%;
  left: 50%;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
  border-color: rgba(136, 183, 213, 0);
  border-top-color: #3A7CDB;
  border-width: 10px;
  margin-left: -10px;
}


.tagbox {
  top: -10px;
  left: 60%;
  position: absolute;
  background-color: #3A7CDB;
    background-image: linear-gradient(to bottom, #518CDE, #3A7CDB);
    background-repeat: repeat-x;
  padding: 10px 20px;
  width: 250px;
  margin-left: 0px;
  text-align: center;
  color: #fff;
        margin-top:140px;

}

.tagbox:after {
  top: 100%;
  left: 50%;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
  border-color: rgba(136, 183, 213, 0);
  border-top-color: #3A7CDB;
  border-width: 10px;
  margin-left: -10px;
}

Answer 1

以下是您的小提琴的更新 - http://jsfiddle.net/7zRVU/4/ 1

你实际上已经做到了，但你只需要一个“位置：亲戚;”到你的“选定”类，所以箭头与它绝对定位，然后，只需将箭头的位置更改为“顶部：所选项目的高度”

.selected {
    position: relative;
}

li.selected a:after {
  top: 23px;
  left: 50%;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
  border-color: rgba(136, 183, 213, 0);
  border-top-color: #3A7CDB;
  border-width: 10px;
  margin-left: -10px;
}

在所选菜单项下方显示三角形

1 个答案: