如何在悬停上创建动画边框 [英] How to create animated border on hover

问题描述

我想要在此网站中创建悬停效果：

I want to create a hover effect like in this site:

http://themes.creiden.com/circleflip/blog-with-sidebar/

只需将鼠标悬停在更多链接上。

Just hover over the "More" link.

http://joxi.ru/uXHGU_3JTJBkDpt35Iw

所以我试着这样做，但我只有这个变种

So I tried to do something like this, but I have only this variant

http://jsfiddle.net/TY8CQ/

代码：

HTML

HTML

<a href="#">Click the link</a>

CSS

body{
    padding: 100px;
    background: #f6f6f6;
}


a{
    display: block;
    width: 200px;
    position: relative;
    background: #fff;
    height: 40px;
    font: 14px/40px Tahoma;
    color: #39adf0;
    text-decoration: none;
    -webkit-transition: 0.2s;
    margin: auto;
    text-align: center;
    position: relative;
}

a:after{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: #39adf0;
    -webkit-transition: 0.2s;
    -moz-transition: 0.2s;
    -ms-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;

}

a:before{
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 0;
    background: #39adf0;
    -webkit-transition: 0.2s;
    -moz-transition: 0.2s;
    -ms-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;
}

a:hover:after{
    width: 100%;
}

a:hover:before{
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: #39adf0;
    -webkit-transition: 0.2s;
    -moz-transition: 0.2s;
    -ms-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;
}

但在示例所有方面...我如何做到这一点？ CSS3只？也许有jQuery？

But in the example (in the website) the stroke appears in order and in all sides... How can I do this? CSS3 only? Maybe with jQuery?

推荐答案

您可以使用这个代码，我从您的示例网站复制。

You can use this code, i copied from your sample website.

这里是工作jsFiddle。

html：

<a href="#">
    <span class="text">Click the link</span>
    <span class="btnBefore"></span>
    <span class="btnAfter"></span>
</a>

css：
a {
float：left ;
border-radius：5px;
margin-top：10px;
position：relative;
Z-index：1;
overflow：hidden;
min-width：47px;
display：table;
padding：6px 9px;
border：none;
-webkit-transition：all 0.5s ease-out;
-moz-transition：all 0.5s ease-out;
-ms-transition：all 0.5s ease-out;
-o-transition：all 0.5s ease-out;
transition：all 0.5s ease-out;
text-align：center;
color：#fff;
background-color：＃E32831;
text-decoration：none;
}
a：hover {
background-color：＃f1f1f1！important;
}

css: a { float: left; border-radius: 5px; margin-top: 10px; position: relative; z-index: 1; overflow: hidden; min-width: 47px; display: table; padding: 6px 9px; border: none; -webkit-transition: all 0.5s ease-out; -moz-transition: all 0.5s ease-out; -ms-transition: all 0.5s ease-out; -o-transition: all 0.5s ease-out; transition: all 0.5s ease-out; text-align: center; color: #fff; background-color: #E32831; text-decoration: none; } a:hover { background-color: #f1f1f1 !important; }

span {
    position: relative;
    z-index: 1;
    line-height: 23px;
    transition: 0.3s ease;
    -webkit-transition: 0.3s ease;
    -moz-transition: 0.3s ease;
    -o-transition: 0.3s ease;
    -ms-transition: 0.3s ease;
}
a:hover span {
    color: #5a5a5a;
}
.btnBefore, .btnAfter {
    content: '';
    position: absolute;
    height: 0;
    width: 0;
    border: solid #e32831;
    border-width: 0;
    border-radius: 0;
    transition: 0;
    -webkit-transition: 0;
    -moz-transition: 0;
    -o-transition: 0;
    -ms-transition: 0;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    border-color: #E32831;
    border-radius: 5px;
}
    a .btnBefore {
    right: 0;
    bottom: 0;
}
a .btnAfter {
    left: 0;
    top: 0;
}
a:hover .btnBefore {
    border-width: 0 0 1px 1px;
}
a:hover .btnAfter {
    border-width: 1px 1px 0 0;
}

a:hover .btnAfter, a:hover .btnBefore {
height: 100%;
width: 100%;
transition: width 0.5s ease, height 0.5s ease 0.5s, border-top-right-radius 0.1s ease 0.4s, border-bottom-left-radius 0.1s ease 0.4s, border-bottom-right-radius 0.1s ease 0.9s, border-top-left-radius 0.1s ease 0.9s;
-webkit-transition: width 0.5s ease, height 0.5s ease 0.5s, border-top-right-radius 0.1s ease 0.4s, border-bottom-left-radius 0.1s ease 0.4s, border-bottom-right-radius 0.1s ease 0.9s, border-top-left-radius 0.1s ease 0.9s;
-moz-transition: width 0.5s ease, height 0.5s ease 0.5s, border-top-right-radius 0.1s ease 0.4s, border-bottom-left-radius 0.1s ease 0.4s, border-bottom-right-radius 0.1s ease 0.9s, border-top-left-radius 0.1s ease 0.9s;
-o-transition: width 0.5s ease, height 0.5s ease 0.5s, border-top-right-radius 0.1s ease 0.4s, border-bottom-left-radius 0.1s ease 0.4s, border-bottom-right-radius 0.1s ease 0.9s, border-top-left-radius 0.1s ease 0.9s;
-ms-transition: width 0.5s ease, height 0.5s ease 0.5s, border-top-right-radius 0.1s ease 0.4s, border-bottom-left-radius 0.1s ease 0.4s, border-bottom-right-radius 0.1s ease 0.9s, border-top-left-radius 0.1s ease 0.9s;
}

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