changes to custom css not working

I have updated to latest version – and made additions to custom css – specifically to clear white space between header – logo and menu bar. Changes to the custom css have been saved, but do not take effect on the site.

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/*
Theme Name: Iconic One Pro
Custom CSS Template for Iconic One Pro
*/

/*@import url(http://fonts.googleapis.com/css?family=Lato);
body {font-family: ‘Lato’, sans-serif;} */

.socialmedia {
margin-top: -60px;
}

.site {
max-width: 1040px;
}

.site-header {
border: none;
}
.wrapper {
border: none;
}

Can you see what I am doing wrong please?