Mga lumulutang na label
Lumikha ng magagandang simpleng mga label ng form na lumulutang sa iyong mga input field.
Halimbawa
I-wrap ang isang pares ng <input class="form-control">at mga <label>elemento .form-floatingupang paganahin ang mga lumulutang na label gamit ang mga field ng textual form ng Bootstrap. Kinakailangan ang A placeholdersa bawat <input>isa dahil ang aming paraan ng CSS-only na mga lumulutang na label ay gumagamit ng :placeholder-shownpseudo-element. Tandaan din na ang <input>dapat ay mauna upang magamit natin ang isang kapatid na tagapili (hal., ~).
<div class="form-floating mb-3">
<input type="email" class="form-control" id="floatingInput" placeholder="[email protected]">
<label for="floatingInput">Email address</label>
</div>
<div class="form-floating">
<input type="password" class="form-control" id="floatingPassword" placeholder="Password">
<label for="floatingPassword">Password</label>
</div>Kapag may valuenatukoy na, <label>s ay awtomatikong aayusin sa kanilang lumutang na posisyon.
<form class="form-floating">
<input type="email" class="form-control" id="floatingInputValue" placeholder="[email protected]" value="[email protected]">
<label for="floatingInputValue">Input with value</label>
</form>Gumagana rin ang mga istilo ng pagpapatunay ng form gaya ng inaasahan.
<form class="form-floating">
<input type="email" class="form-control is-invalid" id="floatingInputInvalid" placeholder="[email protected]" value="[email protected]">
<label for="floatingInputInvalid">Invalid input</label>
</form>Textareas
Bilang default, <textarea>ang s with .form-controlay magiging kapareho ng taas ng <input>s.
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea"></textarea>
<label for="floatingTextarea">Comments</label>
</div>Upang magtakda ng custom na taas sa iyong <textarea>, huwag gamitin ang rowsattribute. Sa halip, magtakda ng tahasang height(inline man o sa pamamagitan ng custom na CSS).
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea2" style="height: 100px"></textarea>
<label for="floatingTextarea2">Comments</label>
</div>Pinili
Maliban sa .form-control, ang mga lumulutang na label ay magagamit lamang sa .form-selects. Gumagana ang mga ito sa parehong paraan, ngunit hindi tulad ng <input>s, palagi nilang ipapakita ang <label>nasa floated state nito. Pumipili kasama sizeat multiplehindi sinusuportahan.
<div class="form-floating">
<select class="form-select" id="floatingSelect" aria-label="Floating label 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>
<label for="floatingSelect">Works with selects</label>
</div>Layout
Kapag nagtatrabaho sa Bootstrap grid system, siguraduhing ilagay ang mga elemento ng form sa loob ng mga klase ng column.
<div class="row g-2">
<div class="col-md">
<div class="form-floating">
<input type="email" class="form-control" id="floatingInputGrid" placeholder="[email protected]" value="[email protected]">
<label for="floatingInputGrid">Email address</label>
</div>
</div>
<div class="col-md">
<div class="form-floating">
<select class="form-select" id="floatingSelectGrid" aria-label="Floating label 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>
<label for="floatingSelectGrid">Works with selects</label>
</div>
</div>
</div>Sass
Mga variable
$form-floating-height: add(3.5rem, $input-height-border);
$form-floating-line-height: 1.25;
$form-floating-padding-x: $input-padding-x;
$form-floating-padding-y: 1rem;
$form-floating-input-padding-t: 1.625rem;
$form-floating-input-padding-b: .625rem;
$form-floating-label-opacity: .65;
$form-floating-label-transform: scale(.85) translateY(-.5rem) translateX(.15rem);
$form-floating-transition: opacity .1s ease-in-out, transform .1s ease-in-out;