This in my web site: https://www.artificiocooperativa.com/
This is the CSS code I have in Optimizer theme settings:
/* Fix eccessive vertical spacing in Slider and About widget content with Optimizer v0.4.6 */
.stat_content_inner h1{line-height: 1.2;}
.stat_content_inner h2{line-height: 1.2;}
.stat_content_inner h3{line-height: 1.2;}
.stat_content_inner h4{line-height: 1.2;}
.stat_content_inner {line-height: 1.2;}
.about_content h2,.about_header {margin: 0;}
.about_inner{line-height: 1.0;}
/* Head Inner */
.head_inner{padding-bottom: 20px;}
/* Site Title and Tagline */
.logo h1 a, .logo h2 a{font-weight: 500; text-transform: uppercase;
line-height: 0;}
span.desc{font-size: 18px; font-weight: 600; text-transform: uppercase;
opacity: 1; line-height: 0;}
/* Menu Frontpage */
#topmenu ul li a{font-weight: 700;}
/* Menu Not Frontpage */
/* Frontpage Slider Text */
.stat_content_inner{font-size: 125%;}
/* About Widgets */
.about_pre{}
.about_header{font-size: 48px; font-weight: 700;}
.aboutblock{padding-top: 40px; padding-bottom: 20px;}
/* Blocks Widgets */
.midrow_block h3{font-size: 1.2em}
/* Page Header */
.page_head{min-height: 0px;}
.page_head h1, .page_head a{font-weight: 600; font-size: 32px;}
#content{margin-top: -60px;}
/* Footer Widgets */
#footer .widgets{padding: 0px 0px;}
/* Footer Copyright */
.copytext{line-height: 1em; padding: 10px;}
This is the CSS code I have in Simple Custom CSS plugin:
.not_frontpage #topmenu ul.menu>li:hover:after{background-color: #555555;}