Reply To: search and category selection 100% width?

Please add the following to your theme’s custom CSS area found in the Customizer:

#cn-cmap span.cn-search {
	display: block;
	float: none;
	width: 100%;
}

#cn-cmap span.cn-search input {
	width: calc( 100% - 32px )
}

#cn-cmap form.cn-form select.cn-category-select {
	width: 100%;
}

I hope this helps, please let me know.