THR2015 - FlexForm
.flex-container {
display: -webkit-flex;
display: flex;
-webkit-flex-flow: row wrap;
flex-flow: row wrap;
-webkit-justify-content: center;
justify-content:center;
}
.flex-item {
-webkit-flex: 0 0 200px;
flex: 0 0 200px;
padding: 10px;
text-align: center;
}
<div class="flex-container">
<div class="flex-item">
<label>ENTRADA</label>
<input id="begin" class="label datepickerbegin" type="text" value="<?php echo $avui; ?>" />
</div>
<div class="flex-item">
<label>SALIDA</label>
<input id="end" class="label datepickerend" type="text" value="<?php echo $dema;?>" />
</div>
<div class="flex-item">
<select id="alojamiento">
<option value="1">Parcela</option>
<option value="2" selected="selected">Bungalow</option>
</select>
<input id="lang" type="hidden" value="es" />
<input id="track"type="hidden" value="formularioweb" />
</div>
<div class="flex-item">
<input class="btn_submit" type="button" value="RESERVAR" onclick="search()" />
</div>
<div class="flex-item">
<a href="http://checkin.unixdata.es/#/login/48"><img src="http://playacambrils.com/wp-content/uploads/2016/12/checkin.png" width="100" height="auto" title="Unix Data CheckIn" alt="Unix Data CheckIn" target="_blank"></a>
</div>
</div>