akhmadkresna

from odoo.addons.website_sale.controllers.main import WebsiteSale

class WebsiteSaleInherit(WebsiteSale):
    @http.route(['/shop/checkout'], type='http', auth="public", website=True)
    def checkout(self, **post):
        # use super to call prevously defined checkout methods so we not overriding the method but extend it.
        res = super(WebsiteSale, self).checkout(**post)   
        # code your bugs in here ;)

akhmadkresna

from odoo import http, tools, _

class WebsiteSale(http.Controller):
    @http.route(['/shop/checkout'], type='http', auth="public", website=True)
    def checkout(self, **post): 
        # we have base code in here

akhmadkresna

@media screen and (min-width: 768px){

	/* Styles before scroll */
	#custom-nav {
	    background-color: rgba(0,0,0,0);
	    border: 0;
	    box-shadow: none;
	    z-index: 999;
	    -webkit-font-smoothing: antialiased;
	    -moz-osx-font-smoothing: grayscale;