任何人都知道如何在这个picture中做透明三角形?
尝试像jsfiddle here,但没有设法将边框更改为渐变,就像标签的颜色一样。
我可以做彩色三角形,但是透明有点棘手。如果有人知道这个伎俩是什么的话,会很高兴。谢谢你们!
我的代码: HTML 的
<nav>
<ul>
<li><a href="#" class="active">homepage</a></li>
<li><a href="#">option2</a></li>
<li><a href="#">option3</a></li>
</ul>
</nav>
的CSS
body {
margin: 0;
}
nav {
position: fixed;
background: orange; /* For browsers that do not support gradients */
background: -webkit-linear-gradient(left, orange , yellow);
background: -o-linear-gradient(right, orange, yellow);
background: -moz-linear-gradient(right, orange, yellow);
background: linear-gradient(to right, orange, yellow);
display: block;
width: 100%;
padding: 10px 0;
color: white;
font-size: 1.5em;
text-align: center;
}
ul {
list-style: none;
padding: 0;
margin: 0;
display: inline-block;
}
ul li {
float: left;
width: auto;
padding: 0 20px;
position: relative;
}
ul li a {
text-decoration: none;
}
nav li a:before,
nav li a:after {
content: '';
position: absolute;
bottom: -41px;
left: 0;
right: 0;
height: 5px;
border: 10px transparent solid;
border-top-color: rgba(0,0,0,.7);
border-left-width: 0;
border-right-width: 0;
}
nav li a:before {
right: 50%;
}
nav li a:after {
left: 50%;
}
nav li a:visited {
color: white;
}
nav li a.active:before {
border-right-width: 10px;
}
nav li a.active:after {
border-left-width: 10px;
}
nav li:first-child a:before {
left: -9999999px;
}
nav li:last-child a:after {
right: -9999999px;
}
JS
$("nav a").click(function() {
$("nav a").removeClass("active");
$(this).addClass("active");
});