style.css

/*
Theme Name: Twenty Thirteen Child
Template: twentythirteen
*/

@import url(../twentythirteen/style.css);

.site-content {
    max-width: 960px;
    margin: auto;
}

.list-posts,
#list-topics,
#selected-topics {
    margin: 0 auto;
    width: 100%;
    list-style: none;
    padding: 0;
}

#list-topics li,
#selected-topics li {
    border-bottom: 1px solid #f8f8f8;
    position: relative;
}

#list-topics li a,
#selected-topics li {
    display: block;
    padding: 7px 9px;
}

#list-topics li a:hover,
#selected-topics li:hover {
background: none repeat scroll 0 0 #eaf2fa;
box-shadow: 0 0 0 1px #d6e1ec;
color: #000;
}

.adv-search {
    /*height: 150px;*/
    overflow: auto;
    margin: 20px 0;
    width: 50%;
    float: left;
    border: 1px solid #dfdfdf;
}

#results {
    clear: both;
}

.hentry {
    padding: 0;
}

#select-result {
    position: absolute;
}

#list-topics span,
#selected-topics span {
    display: inline-block;
    float: right;
}

#list-topics .ui-icon,
#selected-topics .ui-icon {
    display: none;
    position: absolute;
    right: 5px;
    top: 13px;
}

#list-topics li a:hover span.ui-icon,
#selected-topics li:hover span.ui-icon {
    display: block;
}

#list-topics li a:hover #topics,
#selected-topics li:hover #topics {
    padding-right: 24px;
}

#list-topics .hide {
    background: none repeat scroll 0 0 #f8f8f8;
}

#list-topics .hide a {
    background: none repeat scroll 0 0 transparent !important;
    color: #21759b !important;
    cursor: default;
    opacity: 0.5;
}

#list-topics .hide a:hover span.ui-icon {
    display: none;
}

#list-topics .hide a:hover #topics {
    padding-right: 0;
}