addition of w3css has broken grid display

[open768]

no space in the grid

this is a problem on

• all sol high
• other places

[open768]

looking at https://dev.mars-browser.co.uk:8443/curiosity_browser/php/pages/allsoltags.php

this creates a div for each sol with class solbuttondiv which either contains a button or a <a> tag

[open768]

updated the width in the CSS