Design View id elements

Hi all,

I have inherited a website where the style sheet uses id tags to style sections within the site, for example;

#hero h1 {
margin: 0;
font-size: 56px;
color: #fff;
}

#hero p {
font-size: 14px;
color: #333;
}

Etc etc

If I were to select an element within the section, say the h1 element, Design View does not recognise any style.

Is there a way around this or for Design View to be able to work with styled id elements?