Analytics doesnt work. CSS problem?

Hi everyone,

I added the google tracking code into myy css header.php file a underneath the < body > tag.

However google anayltics isn’t registering any page vissits. Could this be due to stuff I’ve added in the plugin “custom css”. This is what I wrote there. Would any of this conflict with adding the trackingcode to the header.php? Thanks for your help

.singular #content, .left-sidebar.singular #content {
margin: 0 5%;
}

.singular .entry-header, .singular .entry-content, .singular footer.entry-meta, .singular #comments-title {
width:90%; text-align:justify
}

.singular.page .hentry {
padding-top: 0;
}

#branding #searchform {
display: none;
}

#site-title, #site-description { display: none;}

.singular .entry-title {
color: #18a805;font-size: 34px;font: ubuntu-1}

.singular .entry-title {text-align:left;}

#branding {
background: url(http://acupunctuurbaidu.nl/wp-content/uploads/2014/02/Utrecht-Acupunctuur-logo.jpg);
background-size: contain ;
padding-top: 18%;
}

#access {
background: #18a805;
}