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<div class="input-group">
<input type="search" class="form-control rounded" placeholder="Search" aria-label="Search" aria-describedby="search-addon" />
<button type="button" class="btn btn-outline-primary">search</button>
</div>
xxxxxxxxxx
<div class="input-group">
<div class="form-outline">
<input id="search-input" type="search" id="form1" class="form-control" />
<label class="form-label" for="form1">Search</label>
</div>
<button id="search-button" type="button" class="btn btn-primary">
<i class="fas fa-search"></i>
</button>
</div>
xxxxxxxxxx
<div class="input-group mb-3">
<input type="text" class="form-control" placeholder="Search" aria-label="Search"
aria-describedby="basic-addon2">
<div class="input-group-append">
<span class="input-group-text" id="search-btn">Search</span>
</div>
</div>
xxxxxxxxxx
<div class="input-group mb-3">
<input type="text" class="form-control" placeholder="Search" aria-label="Search" aria-describedby="basic-addon2">
<div class="input-group-append">
<span class="input-group-text" id="basic-addon2">Search/span>
</div>
</div>
xxxxxxxxxx
<div class="input-group">
<input class="form-control border-end-0 border rounded-pill" type="text" value="search" id="example-search-input">
<span class="input-group-append">
<button class="btn btn-outline-secondary bg-white border-start-0 border rounded-pill ms-n3" type="button">
<i class="fa fa-search"></i>
</button>
</span>
</div>
xxxxxxxxxx
<div class="form-group has-search">
<span class="fa fa-search form-control-feedback"></span>
<input type="text" class="form-control" placeholder="Search">