.home #secondary {
display: none;
}

.home #primary {
width: 100%;
}

.home #site-meta #more-site {
display: none;
}



CustomCSS or Child Theme style.cssCSS
header.tc-header {
/* Adjust the (red) background color */
background-color: red;
/* Adjust the border (top/bottom + left/right) style/color */                       
border:         10px 10px solid red;
/* Adjust the (red) top border style/color */     
border-top:     10px solid red;
/* Adjust the (green) bottom border style/color */              
border-bottom:  10px solid green;             
}