.header code shwoing up for a few seconds when loading website

Hi, my website is showing a annoying .header code whe loading can anyone help me so it does not show please.

Here is the code 

.header {position: relative; z-index: 2; width: 100%; box- sizing: border-box; padding-top: 30px;!important padding- bottom: 30px; limportant padding-left: 4vw; padding-right: 4vw; pointer-events: auto;}

Also attached a image to show you.
Link to website https://shorturl.at/fwMQZ

Thanks

It looks like you are adding style code to the header code injection without style tags, so it is being rendered as plain text in the header.

You can fix this in one of two ways, either add the style code to Custom CSS, or add style tags around the styling code in the header like this:

<style>
.header {position: relative; z-index: 2; width: 100%; box- sizing: border-box; padding-top: 30px;!important padding- bottom: 30px; limportant padding-left: 4vw; padding-right: 4vw; pointer-events: auto;}
</style>