Menu Home Change

My site is sargents.ca. I am rewriting a site originally written in Joomla “4bidding.com” I have most everything working but have 2 issues/questions.

1st I have change the menu colours but cannot get the “Home” menu item to change. I would Like to make it orange but would even accept the font change to Black to make it readable. Custom CSS is currently
#masthead {
background-color: #9fc4e3;
}
.main-navigation a {
background: #dddddd;
color: #000000;
font-weight: 550 !important;
font-size: 15px;
text-transform: initial;
}
.main-navigation ul li:hover a {
background: #666666;
color: #FFFFFF;
}
.main-navigation ul ul a {
/*original was 100px*/
width: 170px;
}
.wpcf7-form input, .wpcf7-form textarea {
border: 1px solid #ccc;
}

2nd I have installed a plugin “Disable Title”. This and every other way I have tried to remove the Title is still leaving a gap at the top of the page. Is there any way to remove this white space

Thanks
Marc