Why is my mobile search bar not working with the icon theme?

[GYBcais]

Hi - my mobile search bar is not working with the icon theme. The store is www.kimsmiley.com 

How can I fix this

[OpenThinking]

Hi there,
Jack from OpenThinking here!

This code should fix the issue for you. Paste the following code Before the closing </head> tag in the layout/theme.liquid file. 

<style>
@media screen and (max-width: 739px) {
	#search_reveal { width: 95%; }
	
	.gridlock .row .mobile-hide {
	    display: block!important;
	    width: 100%!important;
	    text-align:center!important;
	}
}
</style>

let me know if this works for your. If yes; accept my answer and give me thumbs up! Thank you.