how can I control size of inputs in Metro UI Framework? Bootstrap has class form-group-sm i guess, but have MetroUI something similar ?
MetroUI isn't as fully featured as Bootstrap but it has some simple options for inputs:
<!-- Checkbox -->
<label class="input-control checkbox">
<input type="checkbox" checked>
<span class="check"></span>
<span class="caption">Checkbox</span>
</label>
<!-- Small Checkbox -->
<label class="input-control checkbox small-check">
<input type="checkbox" checked>
<span class="check"></span>
<span class="caption">Checkbox</span>
</label>
<!-- Radio button -->
<label class="input-control radio">
<input type="radio">
<span class="check"></span>
<span class="caption">Radio</span>
</label>
<!-- Small radio button -->
<label class="input-control radio small-check">
<input type="radio">
<span class="check"></span>
<span class="caption">Small radio</span>
</label>
Text boxes can be default or big:
<div class="input-control text big-input">
<input type="text">
</div>
It also provides a couple of simple options for buttons:
<button class="button">Caption</button>
<button class="button mini-button">Caption</button>
<button class="button small-button">Caption</button>
<button class="button large-button">Caption</button>