Are you trying to Center The Header Menu in Shopify Dawn Theme?
But, it is not possible from the editor panel. There are so many options to change its position but there is no option to align in the center.
So, in this tutorial I will show you step by step how you can fix this alignment issue. It will look more professional than others when it will be center aligned.
"Before any kinds of coding edit, always keep a duplicate version of your current theme."
1. Click on this three dot button
2. Then, click on edit code for adding new code in your theme
3. Go to the search box and search “base.css”, you will get a file named base.css
4. Click on the base.css file and go to the bottom of your base.css file, start new line by pressing enter and paste the code here
.header{
display: flex !important;
justify-content: space-between;
align-items: center;
}
5. Lastly, click on the save button for save the edited file
6. Go back to your store and refresh