You can make the logo on your storefront appear larger by following the steps below to add this custom code.
Step 1
Visit the Storefront tab on your dashboard and click Custom Head in the options on the right.
Step 2
Copy following code and paste it into the Custom Head section on your dashboard. Then click Save Settings.<style>
.navbar-brand img {height: 2.0em;}
.navbar-brand {font-size: 1.8rem !important;}
</style>
You can play around with the height: 2.0em number to make larger or smaller (for example: 2.5em or 3.0em).