I figured it out:
div#discuss-wrapper.discuss-view-categories .discuss-post-title, div#discuss-wrapper.discuss-view-index .discuss-post-title {
height: auto;
font-size: 18px;
line-height: 20px;
}
div#discuss-wrapper.discuss-view-categories .discuss-list .discuss-story-bd, div#discuss-wrapper.discuss-view-index .discuss-list .discuss-story-bd {
height: auto;
}
div#discuss-wrapper .discuss-searchbar {
padding: 0px;
border: none;
background: none;
}
div#discuss-wrapper .discuss-avatar.avatar-circle img {
border-radius: 0px;
-webkit-border-radius: 0px;
-moz-border-radius: 0px;
}
div#discuss-wrapper .discuss-searchbar .input-searchbar, div#discuss-wrapper .discuss-searchbar .btn-searchbar, div#discuss-wrapper .discuss-searchbar .discuss-searchbar--left, div#discuss-wrapper .discuss-searchbar .discuss-searchbar--input, div#discuss-wrapper .discuss-searchbar.narrow .discuss-searchbar--center {
display: none;
}
div#discuss-wrapper .discuss-searchbar .discuss-searchbar--center {
width: auto;
}
div#discuss-wrapper .discuss-searchbar .btn-ask {
border-radius: 0px;
-webkit-border-radius: 0px;
-moz-border-radius: 0px;
}
div#discuss-wrapper .discuss-searchbar .btn-ask {
position: absolute;
left: 0;
right: 0;
top: 0;
}
div#discuss-wrapper .discuss-searchbar:before, div#discuss-wrapper .discuss-searchbar:after {
height: 30px;
}
did the trick