quick css buttons

Dear Sirs,

We have two websites made with your fantastic theme ;)

We copied one quick css into the other theme, but somehow it is not changing the button sizes.

The website where the buttons are sized correctly is http://www.365invest.com
somehow it does not work for http://www.forex24.nl (login user : dev password kodak)

This is the Quick CSS we used for both websites :

.avia-button.avia-size-small{
padding: 10px 1px 10px;
font-size: 13px;
min-width: 138px;
width: 138px;
max-width: 138px;
}
.avia-button.avia-size-medium{
padding: 8px 1px 8px;
font-size: 13px;
min-width: 128px;
width: 128px;
max-width: 128px;
}
body div .avia-button {
border-radius: 0px; }

.avia-button.avia-size-small { font-size: 13px; } /* for small buttons */

.avia-button-wrap {
margin-right: 10px;}

.widget {
background: black;
padding: 0px ;
}

.html_header_top.html_header_sticky #main {
padding-top: 140px;
}
#header .widget {
padding: ;
}
#icl_lang_sel_widget{
xwidth:83.5% !important;
height: 30px;
}
#lang_sel_click{
display: block;
right:16.5% !important;
position: absolute;
xfloat: right;
margin-right: 30px;
}
#header .textwidget .flex_column {
width: 83.5%;
padding-left: 330px!important;
}
.custom-align {
float: left;
}

.togglecontainer .single_toggle:first-child .toggler {
margin-bottom: 10px;
}

.main_color .toggler, .main_color .toggler.activeTitle:hover{
color: #000000!important;
background-color: #e1e1e1;
}

.main_color .toggle_content {
background: white;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
-moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
-webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
-o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

div .main_color .tabcontainer .active_tab_content { background-color: #e1e1e1; }
div .main_color .tabcontainer .active_tab { background-color: #e1e1e1; color: white; }

.lang_sel_sel { background-color: black !important; }

.avia-button.avia-size-large{
padding: 14px 1px 14px;
font-size: 14px;
min-width: 215px;
width: 215px;
max-width: 215px;
}
.avia-button.avia-size-x-large{
padding: 16px 1px 16px;
font-size: 14px;
min-width: 215px;
width: 215px;
max-width: 215px;
}