CSS - Membuat Menu Selalu Berada di Atas

Source Code Membuat Menu di Web selalu berada di atas,
membuat menu tidak bergerak.

Cara membuat Menu di Web
Cara membuat Menu di Web selalu berada di atas

lalu ini untuk menampilkan nya

<div id='MBL_wrapper'>
<div class='MBL_standard_wrapper'>
<div class='menu-main-menu-container'>
<ul class='main_nav' id='main_menu'>
<li class='menu-item menu-item-type-custom menu-item-object-custom current-menu-item current_page_item menu-item-home menu-item-533' id='menu-item-533'>
<a href="<?php echo get_option('home'); ?>">Home</a></li>
<li><a href='#'>Tentang Kami</a></li>
<li><a href='#'>Info Iklan</a></li>
<li><a href='#'>Hubungi Kami</a></li>
<li><a href='#'>Versi Mobile</a></li>
</ul>
</div>
<div id='menu_border_wrapper'>
</div>
<div class='MBL_social_wrapper'>
<ul>
<li><a href='#' target='_blank'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbRBbtvnswmhD_LNzdvjYaA9MpbUpqvNb6su_jl1ee-eJjgi1w2ZwmPGXc_TD_qMrn3yYnWtpJ6lIpBozqpqt99fAKmCNH1VlcxmYQAqUDn2iVNyD-ILtEfYeCry_dHjky8njW9TZZWhOv/s1600/facebook.png'/></a></li> <li><a href='#' target='_blank'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgudqi8LNJI2Cq73YeR8sWtzHp0LMtSkpkTkrCGWCboRrGEPzs2uAdBRPnvPSevfzXFPCHBou20SlPIu5h38210wpt5O7C-88Enu5pJZliQ2yMGGfbhs4xdXtYYR_PisGE2nefS7XXuNcHf/s1600/twitter.png'/></a></li> <li><a href='#' target='_blank' title='Flickr'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-Yp0ub-ekAp2NBsQd4L_ZEDwqNI4l-_cRbxeh81U51hGf_BVxw5fff_Q8G6to2p0k125ZeEUKrz4oZ0sx02kqD3zmB8aX54514iFXaclQ6K2mFToPrk1nmBbFEKqhIg7G9gYp09VBxNix/s1600/flickr.png'/></a></li> <li><a href='#' target='_blank' title='Vimeo'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7T_PfwgaCBIwGBNyz7q41gLcXmHSUow2LOcVZU4tJ6R2zq2GgVxeOvhvpAlg8DM-ZhsgtViPgse-JMVC17N4xkcsotTiCkf4fh2WuwbB6iNOkbza9BvLAwqAXgHNQauDEb04aIfb7DEIM/s1600/vimeo.png'/></a></li> <li><a href='#' target='_blank' title='Tumblr'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJAIcevomS2VUeKsHpB2hYCVa8jQaob7G_w72XUJ30zX5aN-BTUoqD82PkkddOfAADuL5KC7OEnFq8G9KyB5ghmR5V0sC-acaDqmA8X724ZQeaHX8Ra-tEHEVW9wbyjtrgK9coYt__gZCS/s1600/tumblr.png'/></a></li> <li><a href='#' target='_blank' title='Google+'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcnr2O65mxHFAqHwfYjoPHOFq97snlTVbokdewKpDPNQxodW-VNyBvSgPzo6_DPAseKja09wKfFm7QwlgTBss6qMDdRxgCr3aWrrCwecj_wv1-hMalvzZd7-2-S3LT84867mWi0lnFHGv-/s1600/google.png'/></a></li> <li><a href='#' target='_blank' title='Dribbble'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEYW9ykk3xZej48KzUyq4ZsCfCQuLhFOVI8XE7wDJJ0v3JKzrKZqgSfD7BqrzkRM4r1_lhC8NX9SxTxHHucZsY7WlnvDgy1tl-vpY6wf4N0J1mGtVbdPIErP1VMfiQ1p49LN2EbKFL8AUG/s1600/dribbble.png'/></a></li> <li><a href='#' target='_blank' title='Digg'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-1YTremmhb9od8TDgtbLOw0JSaI_bhCevmcKJx8GYpA4zhy3FPkw_Dr9lBXEsEqTkGgdS8ouA9kVQq-VCSWdHqCWz1c5YzgRi44bNx_Vvu1bZgq33RDGXiQdjsN_fIRBQC0k8U-cq-iT_/s1600/digg.png'/></a></li> <li><a href='#' target='_blank' title='Linkedin'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOD0IwKNu4ndBGchWOStWodCuholVaoglEhc-I5GnhpahhEQo4zBxLe-YdKgz9r9I3XBsXWyabPTKT4fvyJDBPRS0dNJVySXiLNQJcO4TavSnF5R7Ehyphenhyphenvd05JSE4wlksJnQBzndeyfwWO5/s1600/linkedin.png'/></a></li> <li><a href='#' target='_blank' title='Pinterest'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha6Vz6jgIYl_DM0WBge9AlMnaUfA0_C5SuzbEP-W16AQdyrN9Jn5eHpMUTAr8LhtsYFY4hMzNsDxs1JmwRZD0IFiHaXvFthsnkzUZcLTWN8gUw57WArRqexABxNs5TA5hbBlDaqLlkR0sp/s1600/pinterest.png'/></a></li> <li><a href='#' target='_blank'><img alt='' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKEt48FOrltnWfIZYm2WIfU4jIvVUyJlPeC7WrMtHVsgMVm57NTR33D5t7T9z3hUBxTdNXkLpHX_XHQmEYRK8xxM0-kk_6xkuxV7TEl-EGfQs46L-OktAGHiOf2X1dIxdmQf5kgiZH3qQH/s1600/rss.png'/></a></li>
</ul>
</div>
</div>
</div>