Blue Demo – Custom CSS location

Hi,

I’m currently checking your Blue Demo, trying to replicate some of your pages to get a grasp on the theme usage, but I have a few questions about some css rules that I cannot configure in my local environment, for instance:

At the home page of the Blue Demo, the width of the container class is different than the theme’s default, inspecting the page this rule have the custom width:

body .container {
    max-width: 1230px;
}

also the icons above the service widget have no border making use of the following rule

.service-item .service-icon {
    border: 0px!important;
}

Where are those rules configured on the wordpress site, and how can I add those configuration to my site?

Thank your in advance for your support