TASK $5$: Update the CSS$.$ You may notice an empty space between the header area and the navigation area. The empty space is the default bottom margin of the h$1$ element. Refer back to Hands$-$On Practice $4\mathrm{.}51($Part $2)$ and recall that a technique to cause the browser to collapse this empty space is to configure the margin. To set the bottom margin of the h$1$ element to $0,$ code the following style for an $h1$ element selector in the pacific.css file: margin$-$bottom: $0$ ;