It looks like your browser is having a problem with loading the TinyMCE font file.
Here is the CSS portion that loads the fonts:
Code:
@font-face {
font-family: tinymce;
src: url(fonts/tinymce.eot);
src: url(fonts/tinymce.eot?#iefix) format('embedded-opentype'),
url(fonts/tinymce.woff) format('woff'),
url(fonts/tinymce.ttf) format('truetype'),
url(fonts/tinymce.svg#tinymce) format('svg');
font-weight: 400;
font-style: normal
}
@font-face {
font-family: tinymce-small;
src: url(fonts/tinymce-small.eot);
src: url(fonts/tinymce-small.eot?#iefix) format('embedded-opentype'),
url(fonts/tinymce-small.woff) format('woff'),
url(fonts/tinymce-small.ttf) format('truetype'),
url(fonts/tinymce-small.svg#tinymce) format('svg');
font-weight:400;
font-style:normal
}
Please make sure that at least one file per font family is loaded by the browser without errors.