@rifton007在GitHub问题上发布了关于此主题的快速修复。在您的css文件中添加:
.btn-group-xs > .btn, .btn-xs {
padding: .25rem .4rem;
font-size: .875rem;
line-height: .5;
border-radius: .2rem;
}
演示:
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet"/>
<style>
.btn-group-xs > .btn, .btn-xs {
padding: .25rem .4rem;
font-size: .875rem;
line-height: .5;
border-radius: .2rem;
}
</style>
<button class="btn btn-primary btn-xs">♡</button>
<button class="btn btn-primary btn-sm">♡</button>
<button class="btn btn-primary">♡</button>
<button class="btn btn-primary btn-lg">♡</button>
是的,Bootstrap 4中没有btn-xs
,你必须自己创建这个类。在scss/mixins/_buttons.scss
中,你会发现名为button-size
的mixin,所以在你的SCSS代码中使用以下代码:
.btn-xs {
// line-height: ensure proper height of button next to extra small input
@include button-size($padding-y, $padding-x, $font-size, $line-height, $border-radius);
}
你需要定义你自己的xs样式和变量,这对我来说最匹配,接近bootstrap 3 btn-xs大小:
Bootstrap 4 Alpha
$btn-padding-x-xs: .38rem !default;
$btn-padding-y-xs: .18rem !default;
.btn-xs {
@include button-size($btn-padding-y-xs, $btn-padding-x-xs, $font-size-sm, $btn-border-radius-sm);
}
Bootstrap 4 Beta 2
$btn-padding-x-xs: .20rem !default;
$btn-padding-y-xs: .12rem !default;
$input-btn-line-height-xs: 1.1 !default;
.btn.btn-xs {
// line-height: ensure proper height of button next to small input
@include button-size($btn-padding-y-xs, $btn-padding-x-xs, $font-size-sm, $input-btn-line-height-xs, $btn-border-radius-sm);
}