HTML:

<link href='https://fonts.googleapis.com/css?family=Pacifico' rel='stylesheet' type='text/css'>

<a href="#" class="button">
    <span>Hello friends!</span>
</a>

CSS:

body {
    text-align: center;
}

.button {
    display: inline-block;
    margin: 10px;
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
    border-radius: 8px;
    -webkit-box-shadow:    0 8px 0 #c5376d, 0 15px 20px rgba(0, 0, 0, .35);
    -moz-box-shadow: 0 8px 0 #c5376d, 0 15px 20px rgba(0, 0, 0, .35);
    box-shadow: 0 8px 0 #c5376d, 0 15px 20px rgba(0, 0, 0, .35);
    -webkit-transition: -webkit-box-shadow .1s ease-in-out;
    -moz-transition: -moz-box-shadow .1s ease-in-out;
    -o-transition: -o-box-shadow .1s ease-in-out;
    transition: box-shadow .1s ease-in-out;
    font-size: 50px;
    color: #fff;
}

.button span {
    display: inline-block;
    padding: 20px 30px;
    background-color: #ec528d;
    background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from(hsla(338, 90%, 80%, .8)), to(hsla(338, 90%, 70%, .2)));
    background-image: -webkit-linear-gradient(hsla(338, 90%, 80%, .8), hsla(338, 90%, 70%, .2));
    background-image: -moz-linear-gradient(hsla(338, 90%, 80%, .8), hsla(338, 90%, 70%, .2));
    background-image: -o-linear-gradient(hsla(338, 90%, 80%, .8), hsla(338, 90%, 70%, .2));
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
    border-radius: 8px;
    -webkit-box-shadow: inset 0 -1px 1px rgba(255, 255, 255, .15);
    -moz-box-shadow: inset 0 -1px 1px rgba(255, 255, 255, .15);
    box-shadow: inset 0 -1px 1px rgba(255, 255, 255, .15);
    font-family: 'Pacifico', Arial, sans-serif;
    line-height: 1;
    text-shadow: 0 -1px 1px rgba(175, 49, 95, .7);
    -webkit-transition: background-color .2s ease-in-out, -webkit-transform .1s ease-in-out;
    -moz-transition: background-color .2s ease-in-out, -moz-transform .1s ease-in-out;
    -o-transition: background-color .2s ease-in-out, -o-transform .1s ease-in-out;
    transition: background-color .2s ease-in-out, transform .1s ease-in-out;
}

.button:hover span {
    background-color: #ec6a9c;
    text-shadow: 0 -1px 1px rgba(175, 49, 95, .9), 0 0 5px rgba(255, 255, 255, .8);
}

.button:active, .button:focus {
    -webkit-box-shadow:    0 8px 0 #c5376d, 0 12px 10px rgba(0, 0, 0, .3);
    -moz-box-shadow: 0 8px 0 #c5376d, 0 12px 10px rgba(0, 0, 0, .3);
    box-shadow:    0 8px 0 #c5376d, 0 12px 10px rgba(0, 0, 0, .3);
}

.button:active span {
    -webkit-transform: translate(0, 4px);
    -moz-transform: translate(0, 4px);
    -o-transform: translate(0, 4px);
    transform: translate(0, 4px);
}
" /> CSS按钮 · 任刚 · Ren Gang - 我的设计笔记

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