in English
Select
Customize the native <select>
s with custom CSS that changes the element’s initial appearance.
On this page
Default
Custom <select>
menus need only a custom class, .form-select
to trigger the custom styles. Custom styles are limited to the <select>
’s initial appearance and cannot modify the <option>
s due to browser limitations.
<select class="form-select" aria-label="Default select example">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
Sizing
Bạn cũng có thể chọn từ các lựa chọn tùy chỉnh nhỏ và lớn để phù hợp với các đầu vào văn bản có kích thước tương tự của chúng tôi.
<select class="form-select form-select-lg mb-3" aria-label=".form-select-lg example">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<select class="form-select form-select-sm" aria-label=".form-select-sm example">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
Thuộc multiple
tính này cũng được hỗ trợ:
<select class="form-select" multiple aria-label="multiple select example">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
Cũng như size
thuộc tính:
<select class="form-select" size="3" aria-label="size 3 select example">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
Vô hiệu hóa
Thêm disabled
thuộc tính boolean vào một lựa chọn để làm cho nó xuất hiện màu xám và xóa các sự kiện con trỏ.
<select class="form-select" aria-label="Disabled select example" disabled>
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
Sass
Biến
$form-select-padding-y: $input-padding-y;
$form-select-padding-x: $input-padding-x;
$form-select-font-family: $input-font-family;
$form-select-font-size: $input-font-size;
$form-select-indicator-padding: $form-select-padding-x * 3; // Extra padding for background-image
$form-select-font-weight: $input-font-weight;
$form-select-line-height: $input-line-height;
$form-select-color: $input-color;
$form-select-bg: $input-bg;
$form-select-disabled-color: null;
$form-select-disabled-bg: $gray-200;
$form-select-disabled-border-color: $input-disabled-border-color;
$form-select-bg-position: right $form-select-padding-x center;
$form-select-bg-size: 16px 12px; // In pixels because image dimensions
$form-select-indicator-color: $gray-800;
$form-select-indicator: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='#{$form-select-indicator-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/></svg>");
$form-select-feedback-icon-padding-end: $form-select-padding-x * 2.5 + $form-select-indicator-padding;
$form-select-feedback-icon-position: center right $form-select-indicator-padding;
$form-select-feedback-icon-size: $input-height-inner-half $input-height-inner-half;
$form-select-border-width: $input-border-width;
$form-select-border-color: $input-border-color;
$form-select-border-radius: $border-radius;
$form-select-box-shadow: $box-shadow-inset;
$form-select-focus-border-color: $input-focus-border-color;
$form-select-focus-width: $input-focus-width;
$form-select-focus-box-shadow: 0 0 0 $form-select-focus-width $input-btn-focus-color;
$form-select-padding-y-sm: $input-padding-y-sm;
$form-select-padding-x-sm: $input-padding-x-sm;
$form-select-font-size-sm: $input-font-size-sm;
$form-select-padding-y-lg: $input-padding-y-lg;
$form-select-padding-x-lg: $input-padding-x-lg;
$form-select-font-size-lg: $input-font-size-lg;
$form-select-transition: $input-transition;