:root{--base:#333f48;--required:#c8102e;--primary:#c8102e;--secondary:#337099;--secondaryLight:#56b7e6;--tertiary:#702f8a;--tertiaryLight:#c98bdb;--tertiaryDark:#2e1a47;--success:#1acd35;--neutralDarkest:#000;--neutralDarker:var(--base);--neutralDark:#7c878e;--neutral:#a4bcc2;--neutralMid:#d2dee1;--neutralLight:#e8eeef;--neutralLightest:#fff;--gutter:1rem;--gutterSmall:0.5rem;--gutterNegative:-1rem;--gutterLarge:1.5rem;--layoutGutter:1rem;--layoutGutterBottom:0.1rem;--layoutGutterNegative:-1rem;--maxWidth:75rem;--thinWidth:42rem;--columnSpacing:1.5rem;--thirtySeventyWidth:33.33%;--twentyEightyWidth:20%;--pageTwoColSecondary:28%;--sidebarWidth:100%;--search-hit-bg:rgba(86,183,230,.3);--search-result-image-margin:0 0 var(--gutter) var(--gutter);--search-result-margin:var(--gutter) 0;--swiper-centered-offset-before:0;--swiper-centered-offset-after:0;--swiper-virtual-size:0}body{color:var(--base);font-family:Helvetica,Arial,sans-serif;font-size:11pt;line-height:1.4em;margin-bottom:0;margin-top:0}.logo{float:left}#content{clear:both}#footer{font-size:8pt;margin:2em 0 0;padding:.5em 0 0}#credits,#midFooterNavigation,#mobileNavigation,.addthis_toolbox,.box.cta .title,.breadcrumb,.cookify .message,.hide,.mobileNavigation,.productTabsNav,.productTabsNavHeader,.searchForm,.social,.tx-llcatalog-pi .filters,.tx-llcatalog-pi .pagination,.tx-llslider-pi1,form,hr,ul.navigation,ul.orbit-bullets{display:none}.box.cta{background-color:var(--neutralLight)!important;margin-bottom:10px;padding:10px;-webkit-print-color-adjust:exact}.product{margin-bottom:20px;padding-bottom:10px}.product,h1,h2,h3,h4,h5,h6{border-bottom:1px solid var(--neutralMid)}h1,h2,h3,h4,h5,h6{padding-bottom:.3em}h1{border-width:3px;color:var(--primary);line-height:1.2em}a{text-decoration:none}a:active:after,a:hover:after,a:link:after,a:visited:after{content:" [www.bentham.co.uk/" attr(href) "] ";font-size:8pt}a[href^="/"]:after{content:" [www.bentham.co.uk" attr(href) "] "}a[href^=http]:after{content:" [" attr(href) "] "}.logo a:after,a[href=""]:after,a[href^=mailto]:after,p.category a:after{content:""}.logo a,h1 a,h2 a,h3 a,h4 a,h5 a,h6 a{border-width:0}ul{margin-left:0;padding-left:0}ul li{list-style-type:none}table{border-collapse:collapse;margin-bottom:1.5em;text-align:left;width:99%}table caption{display:none}table thead{display:table-header-group;margin:0 0 .5em}table thead tr th{border-bottom:2px solid var(--neutralMid);margin-bottom:1em;padding:.6em .5em .6em 0;text-align:left}table tbody tr th{margin:0 0 2em;padding:.8em 1.5em .5em 0;vertical-align:top}table tbody tr td{padding:.7em .5em .7em 0}table tbody tr td,table tbody tr th{border-bottom:1px solid var(--neutralMid)}table p{margin:0}.divider{border-bottom:1px solid var(--neutralMid);height:1px;margin:15px 0 20px}blockquote{background-color:var(--neutralMid);border-color:var(--neutralDark);border-style:solid;border-width:thin 0;font-style:italic}@media (--from-desktop){:root{--layoutGutter:3rem;--layoutGutterBottom:1.5rem;--layoutGutterNegative:-3rem;--sidebarWidth:19.3rem}}@media (--from-phone){:root{--layoutGutter:1.5rem;--layoutGutterBottom:0.5rem;--layoutGutterNegative:-1.5rem}}@media (--from-tablet){:root{--gutter:1.5rem;--gutterSmall:0.75rem;--gutterNegative:-1.5rem;--gutterLarge:2.5rem;--layoutGutter:2rem;--layoutGutterBottom:0.5rem;--layoutGutterNegative:-2rem;--sidebarWidth:17rem}}