Center Header Block Items (3.1/3.2)

If you need to center Header Block Items, 3.2.* release created more options for doing this in the Customize>Header panel reducing the need to use this Snippet. Check those options first and only use parts of this code as needed:

/* START OF Center Header Block Items 3.2.* (Needs additional php CODE BLOCK 2 in Child Theme functions.php) */

/* STEP 1 - CENTER LOGO */
/*
/* Built in to 3.2.1    */


/* STEP 2 - CENTER TAGLINE */

/* OPTION 2/1 - HIDE TAGLINE */
/*
/* Built in to 3.2.1    */

/* OPTION 2/2 - CENTER TAGLINE */
.navbar-wrapper .navbar.resp h2 {
display:            block;
text-align:         center;
margin:             0px 0%;            /* Adjust +/- % if needed */
}

/* STEP 3 - CENTER SOCIAL ICONS */

/* OPTION 3/1 - HIDE SOCIAL ICONS */
.navbar-wrapper .navbar.resp .social-block {
display:            none;
}


/* OPTION 3/2 - CENTER SOCIAL ICONS */
.navbar-wrapper .navbar.resp .social-block {
display:            block;
margin:             0 37%;              /* Adjust +/- % if needed */
}


/* STEP 4 */
/* OPTION 4/1 - CENTER MENU */
.navbar-wrapper .navbar.resp ul.nav.tc-hover-menu { 
display:            block;
float:              none; 
width:              100%; 
margin:             0 10%;              /* Adjust +/- % if needed */ 
}

/* Variable number of floating elements */
.navbar-wrapper .navbar.resp .nav        {
float:              none; 
width:              100%; 
text-align:         center;
}

.navbar-wrapper .navbar.resp .nav > li   {
float:              none; 
display:            inline-block;
}

/* Fix 2nd level

• s */
  .navbar-wrapper .navbar.resp .nav > li .dropdown-menu li {
  float: left;
  width: 100%;
  text-align: left;
  }/* Adjust margin/padding */
  .navbar-wrapper .navbar.resp .navbar-inner {
  margin: 0px 0px;
  padding: 0px 0px;
  }

  /* STEP 5 */
  /* OPTION 1/1 – HIDE NAVBAR BOX */
  /*
  /* Built in to 3.2.1 *//* STEP 6 */
  /* RESPONSIVENESS */
  @media (max-width: 979px) {
  .tc-header .brand {
  width: auto;
  }
  .row-fluid .offset1:first-child {
  margin-left: 0;
  }
  }
  /* END OF Center Header Block Items 3.2.* (Needs additional php CODE BLOCK 2 in Child Theme functions.php) */

// START OF Center Header Block Items (Needs additional CSS CODE BLOCK 1 in Child Theme style.css)

// NAVBAR WRAPPER //
// center the Navbar
//
// Built in to 3.2.1
//

// LOGO //
// center the Logo
//
// Built in to 3.2.1
//

// TAGLINE //
// center the Tagline
add_filter('tc_tagline_class', 'rdc_tagline_class');
function rdc_tagline_class() {
     return 'span12';
}

// SOCIAL ICONS //
// center the output of tc_social_in_header:
add_filter('tc_social_header_block_class', 'rdc_social_header_block_class');
function rdc_social_header_block_class($social_header_block_class) {
     if ('span5' == $social_header_block_class) {
         $social_header_block_class = 'span12';
     }
     return $social_header_block_class;
}

// END OF Center Header Block Items (Needs additional CSS CODE BLOCK 1 in Child Theme style.css)

/* START OF Center Header Block Items 3.1.* (Needs additional php CODE BLOCK 2 in Child Theme functions.php) */
/* STEP 1 - CENTER LOGO */
.brand.span12 {
float:              none;
}


/* STEP 2 */
/* OPTION 1/2 - CENTER TAGLINE */
.tc-header .outside {
display:            block;
text-align:         center;
}
.site-description {
margin:             0px 0px;
}
.inside.site-description {
display:            none;
}

/* OPTION 2/2 - HIDE TAGLINE */
.tc-header .outside, .site-description, .inside.site-description {
display:            none;
}


/* STEP 3 */
/* OPTION 1/2 - CENTER SOCIAL ICONS */
.social-block {
text-align:         center;
position:           relative;
z-index:            1;
}

/* OPTION 2/2 - HIDE SOCIAL ICONS */
.social-block.span12 {
display:            none;
}


/* STEP 4 */
/* OPTION 1/1 - CENTER MENU */
.navbar-wrapper .navbar.notresp { 
float:              none; 
width:              90%; 
margin:             0 auto; 
}

/* Variable number of floating elements */
.navbar-wrapper .navbar.notresp .nav        {
float:              none; 
width:              100%; 
text-align:         center;
}

.navbar-wrapper .navbar.notresp .nav > li   {
float:              none; 
display:            inline-block;
}

/* Fix 2nd level

• s */
  .navbar-wrapper .navbar.notresp .nav > li .dropdown-menu li {
  float: left;
  width: 100%;
  text-align: left;
  }/* Adjust margin/padding */
  .navbar-wrapper .navbar.notresp .navbar-inner {
  margin: 0px 0px;
  padding: 0px 0px;
  }/* STEP 5 */
  /* OPTION 1/1 – HIDE NAVBAR BOX */
  .navbar-wrapper .navbar.notresp .navbar-inner {
  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
  background: none;
  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
  }/* STEP 6 */
  /* RESPONSIVENESS */
  @media (max-width: 979px) {
  .tc-header .brand {
  width: auto;
  }
  .row-fluid .offset1:first-child {
  margin-left: 0;
  }
  }
  /* END OF Center Header Block Items 3.1.* (Needs additional php CODE BLOCK 2 in Child Theme functions.php) */

// START OF Center Header Block Items 3.1.* (Needs additional CSS CODE BLOCK 1 in Child Theme style.css)
// NAVBAR WRAPPER //
add_filter( 'tc_navbar_wrapper_class',  'rdc_navbar_wrapper_class' );
function rdc_navbar_wrapper_class() {
     // 'navbar-wrapper clearfix span12' for a full-width navbar. You can change this to make it narrower if you want. For example, 'navbar-wrapper clearfix span6 offset3'
     return 'navbar-wrapper clearfix span12';
}
// LOGO //
// center the logo
add_filter( 'tc_logo_class', 'rdc_logo_class' );
function rdc_logo_class() {
     // Change to accommodate your logo. For example:
     // 'brand span12' for a full-width logo; 'brand span4 offset4' for a medium logo; 'brand span2 offset5' for a very small logo
     return 'brand span12';
}
// TAGLINE //
// center the Tagline
add_filter('tc_tagline_class', 'rdc_tagline_class');
function rdc_tagline_class() {
     return 'span12';
}
// SOCIAL ICONS //
// center the output of tc_social_in_header:
add_filter('tc_social_header_block_class', 'rdc_social_header_block_class');
function rdc_social_header_block_class($social_header_block_class) {
     if ('span5' == $social_header_block_class) {
         $social_header_block_class = 'span12';
     }
     return $social_header_block_class;
}
// END OF Center Header Block Items 3.1.* (Needs additional CSS CODE BLOCK 1 in Child Theme style.css)

Credit: Adapted from original code by @acub, updated by @rdellconsulting/@ElectricFeet