Hello @Genes!

Much easier just to place the HTML code into the block with the proper arguments for a form like 

<div class="bx-form-input-wrapper bx-form-input-wrapper-text"><input placeholder="Search..." onkeypress="return bx_search_on_type(event, 5, '#sys_search_form_quick', '#sys_search_results_quick', '#sys_search_results_quick', '1', 1);" onpaste="return bx_search_on_type(event, 5, '#sys_search_form_quick', '#sys_search_results_quick', '#sys_search_results_quick', '1', 1);" type="text" name="keyword" value="" class="bx-def-font-inputs bx-form-input-text">

</div>

And close this block for the guests.