Fixed bugs in the smartphone version and optimized breadcrumb list specifications

【Contents of fix】
■Fixed a bug in which an unnecessary button was output at the top of the page when displayed on a smartphone.
■Apply microdata format structured markup recommended by google to the breadcrumb list code.

The following files have been modified for this update.
【Corrected files】
404.php
archive.php
content-page.php
content-pagenoside.php
header.php
index.php
page/template1.php
page/template2.php
page/template3.php
page/template4.php
search.php
single-staff.php
single.php
style.css
breadcrumb.php

【Added files】
fonts/design_plus.eot
fonts/design_plus.svg
fonts/design_plus.ttf
fonts/design_plus.woff

For details, please see the download site for AGENT (tcd033) purchasers.