.demo {
    width : 760px;
    margin: 20px auto 0 auto;
    height: 70px;
}

.button {
    display              : inline-block;
    outline              : none;
    cursor               : pointer;
    text-align           : center;
    text-decoration      : none;
    font                 : 16px/100% 'Microsoft yahei', Arial, Helvetica, sans-serif;
    padding              : .5em 2em .55em;
    text-shadow          : 0 1px 1px rgba(0, 0, 0, .3);
    -webkit-border-radius: .5em;
    -moz-border-radius   : .5em;
    border-radius        : .5em;
    -webkit-box-shadow   : 0 1px 2px rgba(0, 0, 0, .2);
    -moz-box-shadow      : 0 1px 2px rgba(0, 0, 0, .2);
    box-shadow           : 0 1px 2px rgba(0, 0, 0, .2);
}

.button:hover {
    text-decoration: none;
}

.button:active {
    position: relative;
    top     : 1px;
}

.bigrounded {
    -webkit-border-radius: 2em;
    -moz-border-radius   : 2em;
    border-radius        : 2em;
}

.medium {
    font-size: 12px;
    padding  : .4em 1.5em .42em;
}

.small {
    font-size: 11px;
    padding  : .2em 1em .275em;
}


/* blue */
.blue {
    color     : #d9eef7;
    border    : solid 1px #0076a3;
    background: #0095cd;
    background: -webkit-gradient(linear, left top, left bottom, from(#00adee), to(#0078a5));
    background: -moz-linear-gradient(top, #00adee, #0078a5);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#00adee', endColorstr='#0078a5');
}

.blue:hover {
    background: #007ead;
    background: -webkit-gradient(linear, left top, left bottom, from(#0095cc), to(#00678e));
    background: -moz-linear-gradient(top, #0095cc, #00678e);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#0095cc', endColorstr='#00678e');
}

.blue:active {
    color     : #80bed6;
    background: -webkit-gradient(linear, left top, left bottom, from(#0078a5), to(#00adee));
    background: -moz-linear-gradient(top, #0078a5, #00adee);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#0078a5', endColorstr='#00adee');
}

/* green */
.green {
    color     : #e8f0de;
    border    : solid 1px #538312;
    background: #64991e;
    background: -webkit-gradient(linear, left top, left bottom, from(#7db72f), to(#4e7d0e));
    background: -moz-linear-gradient(top, #7db72f, #4e7d0e);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#7db72f', endColorstr='#4e7d0e');
}

.green:hover {
    background: #538018;
    background: -webkit-gradient(linear, left top, left bottom, from(#6b9d28), to(#436b0c));
    background: -moz-linear-gradient(top, #6b9d28, #436b0c);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#6b9d28', endColorstr='#436b0c');
}

.green:active {
    color     : #a9c08c;
    background: -webkit-gradient(linear, left top, left bottom, from(#4e7d0e), to(#7db72f));
    background: -moz-linear-gradient(top, #4e7d0e, #7db72f);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#4e7d0e', endColorstr='#7db72f');
}

/* white */
.white {
    color     : #606060;
    border    : solid 1px #b7b7b7;
    background: #fff;
    background: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#ededed));
    background: -moz-linear-gradient(top, #fff, #ededed);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#ededed');
}

.white:hover {
    background: #ededed;
    background: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#dcdcdc));
    background: -moz-linear-gradient(top, #fff, #dcdcdc);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#dcdcdc');
}

.white:active {
    color     : #999;
    background: -webkit-gradient(linear, left top, left bottom, from(#ededed), to(#fff));
    background: -moz-linear-gradient(top, #ededed, #fff);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#ededed', endColorstr='#ffffff');
}

/* orange */
.orange {
    color     : #fef4e9;
    border    : solid 1px #da7c0c;
    background: #f78d1d;
    background: -webkit-gradient(linear, left top, left bottom, from(#faa51a), to(#f47a20));
    background: -moz-linear-gradient(top, #faa51a, #f47a20);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#faa51a', endColorstr='#f47a20');
}

.orange:hover {
    background: #f47c20;
    background: -webkit-gradient(linear, left top, left bottom, from(#f88e11), to(#f06015));
    background: -moz-linear-gradient(top, #f88e11, #f06015);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#f88e11', endColorstr='#f06015');
}

.orange:active {
    color     : #fcd3a5;
    background: -webkit-gradient(linear, left top, left bottom, from(#f47a20), to(#faa51a));
    background: -moz-linear-gradient(top, #f47a20, #faa51a);
    filter    : progid:DXImageTransform.Microsoft.gradient(startColorstr='#f47a20', endColorstr='#faa51a');
}