一款基于css3的简单的鼠标悬停按钮_html/css_WEB-ITnose

  <div class="container">        <p>            Single gradient border</p>        <a href="#" class="btn">Click Me!</a> <a href="#" class="btn">Very long link text here</a>    </div>    <div class="container">        <p>            Pseudo elements at a fixed size. Nasty 1px drop on hover</p>        <a href="#" class="btn2">Click Me!</a> <a href="#" class="btn2">Very long link text            here</a>    </div>    <div class="container">        <p>            Multiple borders using pseudo elements with gradient borders</p>        <a href="#" class="btn3">Click Me!</a> <a href="#" class="btn3">Very long link text            here</a>    </div>    <h1>        <a href="#" class="btn3">A Huge Link</a></h1>

        body        {            font-family: "Courier New" , "Inconsolata" , monospace;            font-size: 18px;            line-height: 26px;            background: #333;            color: #fff;        }        h1        {            font-weight: 100;            font-size: 80px;            line-height: 90px;            text-align: center;        }        .container        {            width: 800px;            margin: 50px auto;            text-align: center;        }        .btnCommon        {            display: inline-block;            text-decoration: none;            color: #fff;            padding: 8px 16px;            margin: 0 10px;            border: 1px solid #fff;            letter-spacing: 1px;        }        .btnCommon:hover        {            text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8);        }        .btn        {            display: inline-block;            text-decoration: none;            color: #fff;            padding: 8px 16px;            margin: 0 10px;            border: 1px solid #fff;            letter-spacing: 1px;            border-image: linear-gradient(to right, #ffffff 15%, rgba(0, 0, 0, 0) 30%, rgba(0, 0, 0, 0) 70%, #ffffff 85%) 1;            transition: all .2s;        }        .btn:hover        {            text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8);        }        .btn:hover        {            transition: all .2s;            background: rgba(255, 255, 255, 0.2);            border: 1px solid #fff;        }        .btn2        {            display: inline-block;            text-decoration: none;            color: #fff;            padding: 8px 16px;            margin: 0 10px;            border: 1px solid #fff;            letter-spacing: 1px;            border: none;            height: 40px;            line-height: 40px;            position: relative;            padding: 0;            margin: 0 25px;        }        .btn2:hover        {            text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8);        }        .btn2:before, .btn2:after        {            width: 15px;            border: 1px solid #fff;            position: absolute;            content: "";            height: 40px;            top: -1px;        }        .btn2:before        {            left: -16px;            border-right: none;        }        .btn2:after        {            right: -16px;            border-left: none;        }        .btn2:hover, .btn2:hover:before, .btn2:hover:after        {            transition: all .2s;            background: rgba(255, 255, 255, 0.2);            border-color: pink;        }        .btn2:hover        {            border: 1px solid pink;            border-width: 1px 0 1px 0;        }        .btn3        {            display: inline-block;            text-decoration: none;            color: #fff;            padding: 8px 16px;            margin: 0 10px;            border: 1px solid #fff;            letter-spacing: 1px;            position: relative;            border: 1px solid rgba(0, 0, 0, 0);            transition: all .2s;        }        .btn3:hover        {            text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.8);        }        .btn3:before, .btn3:after        {            display: inline-block;            width: 100%;            height: 100%;            content: "";            position: absolute;            left: -1px;            top: -1px;            border-width: 1px;            transition: all .2s;        }        .btn3:before        {            border-image: linear-gradient(to right, #ffffff 30px, rgba(0, 0, 0, 0) 16px) 1;        }        .btn3:after        {            border-image: linear-gradient(to left, #ffffff 30px, rgba(0, 0, 0, 0) 16px) 1;        }        .btn3:hover        {            transition: all .2s;            background: rgba(255, 255, 255, 0.2);        }        .btn3:hover:before, .btn3:hover:after        {            border: 1px solid rgba(0, 0, 0, 0);            transition: all .2s;        }