You still have a few syntax errors in there, here are the rules corrected in bold
.entry-title {text-align:center !important;}
.widget-title {text-align:center;}
.more-link {text-align:center;}
.wp-video {text-align: center;margin-left: auto;margin-right: auto;}
.table.center {margin-left:auto;margin-right:auto;}
.menu-toggle-button.genericon, .wvrx-menu-button .genericon {vertical-align:middle;}
.wvrx-menu-button {margin-top:0.10em;}
.is-menu-mobile .wvrx-menu-container {padding-bottom:0.07em;}
.atw-show-posts-schema .post-title {font-variant:small-caps;}
.atw-show-posts-schema .post-area {color:#5E0A0A;line-height:normal;border-bottom: 1px solid #CCC;}
.atw-show-posts-schema .excerpt-dots {display:none;}
.atw-show-posts-schema a.more-link {text-align:left;display:inline;}
.atw-show-posts-schema .entry-summary p {margin-top:0;margin-bottom:0;display:inline;}
.atw-show-posts-schema .post-area {margin-bottom:0.3em;}
.atw-show-posts-schema .post-area {margin-bottom:0.3em;padding-bottom:5px;}
img { border-radius: 5%; }
.calnk-link span.spiffy-popup {z-index:20000;}
That said the message you get is weird as there are no rules like that.
I suggest you click inside the Custom css box and do a SELECT ALL, then DELETE to clear everything in that box.
Then copy the CSS above and past it back in the box
There is something broken, as When I look inside your CSS file the bottom section reads the content below and it is all messed up.
Check all the custom CSS location (not just the weaver one, but the wordpress one), to see if you can find that @media rule, as I suspect it may be missing a closing curly bracket….
/* Weaver Xtreme Plus CSS Styles – Version 7.0.3 */
@media screen and (min-width: 768px) {
.menu-primary.menu-type-standard .sm >
li >ul:before,.menu-primary.menu-type-standard .sm >li >ul:after {
bottom: 100%;
left: 33px;
border: solid transparent;
content: \’\’;height:0;width:0;position:absolute}.menu-primary.menu-type-standard .sm >li >ul:after{border-bottom-color:#000000;border-width:8px;margin-left:-8px}.menu-primary.menu-type-standard .sm >li >ul:before{border-bottom-color:#D6D5D0;border-width:9px;margin-left:-9px}.menu-primary.menu-type-standard .wvrx-menu.sm li a span.sub-arrow:after{font-size:70%!important;top:80%;right:44%;margin:0}.menu-primary.menu-type-standard .wvrx-menu.sm ul a span.sub-arrow:after{top:33%;right:-1.0em;left:auto;margin-right:1.5em}.menu-primary.menu-type-standard .wvrx-menu.sm li .has-submenu{padding-right:1em;padding-left:.75em}.menu-primary.menu-type-standard .wvrx-menu.sm ul .has-submenu,.menu-primary.menu-type-standard .wvrx-menu.sm ul .children{padding-right:2.0em}}@media screen and (min-width:768px){.menu-secondary.menu-type-standard .sm >li >ul:before,.menu-secondary.menu-type-standard .sm >li >ul:after{bottom:100%;left:33px;border:solid transparent;content:\’\’;height:0;width:0;position:absolute}.menu-secondary.menu-type-standard .sm >li >ul:after{border-bottom-color:#D6D6D6;border-width:8px;margin-left:-8px}.menu-secondary.menu-type-standard .sm >li >ul:before{border-bottom-color:#D6D5D0;border-width:9px;margin-left:-9px}.menu-secondary.menu-type-standard .wvrx-menu.sm li a span.sub-arrow:after{font-size:70%!important;top:80%;left:45%;margin:0}.menu-secondary.menu-type-standard .wvrx-menu.sm ul a span.sub-arrow:after{top:33%;right:-1.0em;left:auto;margin-right:1.5em}.menu-secondary.menu-type-standard .wvrx-menu.sm li .has-submenu,.menu-secondary.menu-type-standard .wvrx-menu.sm li .children{padding-right:1em;padding-left:1em}.menu-secondary.menu-type-standard .wvrx-menu.sm ul .has-submenu,.menu-secondary.menu-type-standard .wvrx-menu.sm ul .children{padding-right:2.0em}}@media screen and (min-width:768px){.menu-extra.menu-type-standard .sm >li >ul:before,.menu-extra.menu-type-standard .sm >li >ul:after{bottom:100%;left:33px;border:solid transparent;content:\’\’;height:0;width:0;position:absolute}.menu-extra.menu-type-standard .sm >li >ul:after{border-bottom-color:#D6D6D6;border-width:8px;margin-left:-8px}.menu-extra.menu-type-standard .sm >li >ul:before{border-bottom-color:#D6D5D0;border-width:9px;margin-left:-9px}.menu-extra.menu-type-standard .wvrx-menu.sm li a span.sub-arrow:after{font-size:70%!important;top:80%;right:44%;margin:0}.menu-extra.menu-type-standard .wvrx-menu.sm ul a span.sub-arrow:after{top:33%;right:-1.0em;left:auto;margin-right:1.5em}.menu-extra.menu-type-standard .wvrx-menu.sm li .has-submenu{padding-right:1em;padding-left:.75em}.menu-extra.menu-type-standard .wvrx-menu.sm ul .has-submenu,.menu-extra.menu-type-standard .wvrx-menu.sm ul .children{padding-right:2.0em}}/* Weaver Xtreme Plus Background Images */.wrapper .widget a{font-size:110%}#secondary-widget-area{font-size:130%;font-weight:bold}.widget-area-secondary{font-size:130%;font-weight:bold}.widget-area-top{max-width:300px}input,textarea (line-heigh:0.5) .entry-title{text-align:center! important}.widget-title{text-align:center}.more-link{text-align:center}.wp-video{text-align:center;margin-left:auto;margin-right:auto}.table.center{margin-left:auto;margin-right:auto}.menu-toggle-button.genericon,.wvrx-menu-button .genericon{vertical-align:middle}.wvrx-menu-button{margin-top:.10em}.is-menu-mobile .wvrx-menu-container{padding-bottom:.07em}.atw-show-posts-schema .post-title{font-variant:small-caps}.atw-show-posts-schema .post-area{color:#5E0A0A;line-height:normal;border-bottom:1px solid #CCC}.atw-show-posts-schema .excerpt-dots{display:none}.atw-show-posts-schema a.more-link{tex-align:left;display:inline}.atw-show-posts-schema .entry-summary p{margin-top:0;margin-bottom:0;display:inline}.atw-show-posts-schema .post-area{margin-bottom:.3em}.atw-show-posts-schema .post-area{margin-bottom:.3em;padding-bottom:5px}img{border-radius:5%}.calnk-link span.spiffy-popup{z-index:20000}