mui-btn-outlined

希望无底色、有边框的按钮 <button type="button" class="mui-btn mui-btn-primary mui-btn-outlined">蓝色</button>

Mui.css （v3.0.0）部分源码：

1317
.mui-btn-outlined
{
    background-color: transparent;
}
.mui-btn-outlined.mui-btn-primary, .mui-btn-outlined.mui-btn-blue
{
    color: #007aff;
}
.mui-btn-outlined.mui-btn-positive, .mui-btn-outlined.mui-btn-success, .mui-btn-outlined.mui-btn-green
{
    color: #4cd964;
}
.mui-btn-outlined.mui-btn-warning, .mui-btn-outlined.mui-btn-yellow
{
    color: #f0ad4e;
}
.mui-btn-outlined.mui-btn-negative, .mui-btn-outlined.mui-btn-danger, .mui-btn-outlined.mui-btn-red
{
    color: #dd524d;
}
.mui-btn-outlined.mui-btn-royal, .mui-btn-outlined.mui-btn-purple
{
    color: #8a6de9;
}
.mui-btn-outlined.mui-btn-primary:enabled:active, .mui-btn-outlined.mui-btn-blue:enabled:active, .mui-btn-outlined.mui-btn-positive:enabled:active, .mui-btn-outlined.mui-btn-success:enabled:active, .mui-btn-outlined.mui-btn-green:enabled:active, .mui-btn-outlined.mui-btn-warning:enabled:active, .mui-btn-outlined.mui-btn-yellow:enabled:active, .mui-btn-outlined.mui-btn-negative:enabled:active, .mui-btn-outlined.mui-btn-danger:enabled:active, .mui-btn-outlined.mui-btn-red:enabled:active, .mui-btn-outlined.mui-btn-royal:enabled:active, .mui-btn-outlined.mui-btn-purple:enabled:active
{
    color: #fff;
}