.header-menu-wrap { font-weight:bold; font-size:14px; } .navbar-custom .nav li > a { position: relative; color: #ff9308; } a { color: #ff9308; font-weight:bold; } #callnowbutton {display:none;} @media screen and (max-width:650px){ #callnowbutton { display:block; height:80px; position:fixed; width:100%; left:0; bottom:-20px; border-top:0px solid rgba(51,187,51,1); background:url(https://austnam.vn/wp-content/uploads/2018/04/call-buttom-nhuong.png) center 10px no-repeat; text-decoration:none; box-shadow:0 0 0px #888; -webkit-box-shadow:0 0 0px #888; -moz-box-shadow:0 0 0px #888; z-index:9999;} }