You can leave the custom website CSS alone BUT you have do have to remove the layout bits.\\

Also do add\\
<code>
body { padding: 30px; }
.navbar { margin-bottom: 30px; }
</code>
at the bottom for the Navbar Bootstrap theme being used at present.\\

Instead of using the classic website CSS, I have used at present\\
<code>
/* From blog.css */
/* Feedback */

.comments-open label {
    display: block;
}

#comment-author, #comment-email, #comment-url, #comment-text {
    width: 80%;
}

#comment-bake-cookie {
    margin-left: 0;
    vertical-align: middle;
}

#top-comment-nav, #comment-nav {
  list-style: none;
  width: 100%;
  margin: 0 0 1em 0;
  padding: 0;
  text-align: center;
}

#top-comment-nav li, #comment-nav li {
  display: inline;
  padding: 0;
}

#top-prev-comments, #prev-comments {
  text-align: left;
  margin: 0 1em 0 0;
}

#top-next-comments, #next-comments {
  text-align: right;
  margin: 0 0 0 1em;
}

#top-num-comments, #num-comments {
  text-align: center;
}

#comment-submit {
    font-weight: bold;
}

.comment,
.trackback {
    margin-bottom: .5em;
    border-bottom: 1px solid #ccc;
    padding-bottom: .5em;
}

.comment .asset-meta,
.trackback .asset-meta {
    border: 0;
}

.comment-content {
    clear: none;
    line-height: 1.5;
    margin-bottom: 1em;
}

.comment-content p {
    margin-bottom: .5em;
}

/* Widgets */

.widget {
    position: relative;
    overflow: hidden;
    width: 100%;
}

.widget-content {
    position: relative;
    margin: 5px 0 20px;
}

.archive-content ul,
.widget-content ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.widget-content ul ul {
    margin-left: 15px;
}

.widget-content li {
    margin-top: 5px;
    margin-bottom: 5px;
}

.widget-tag-cloud .widget-content ul {
    margin-right: 0;
    margin-left: 0;
}

.widget-tag-cloud .widget-content li {
    display: inline;
    margin: 0 5px 0 0;
    padding: 0;
    line-height: 1.6;
    background: none;
}

.widget-tag-cloud .rank-1  { font-size: 1.75em; }
.widget-tag-cloud .rank-2  { font-size: 1.75em; }
.widget-tag-cloud .rank-3  { font-size: 1.625em; }
.widget-tag-cloud .rank-4  { font-size: 1.5em; }
.widget-tag-cloud .rank-5  { font-size: 1.375em; }
.widget-tag-cloud .rank-6  { font-size: 1.25em; }
.widget-tag-cloud .rank-7  { font-size: 1.125em; }
.widget-tag-cloud .rank-8  { font-size: 1em; }
.widget-tag-cloud .rank-9  { font-size: 0.95em; }
.widget-tag-cloud .rank-10 { font-size: 0.9em; }

#footer .widget-content {
    margin-top: 0;
    margin-bottom: 0;
}

.widget-recent-assets .widget-content ul {
    overflow: auto;
    margin-right: 0;
}

.item {
    display: inline;
    float: left;
    margin: 0pt 5px 8px;
    overflow: hidden;
    text-align: center;
    vertical-align: middle;
    width: 70px;
}

.widget-search ul,
.widget-syndication ul {
    margin-left: 0;
    list-style: none;
}

.widget-search li,
.widget-syndication li  {
    margin: 5px 0;
}

.widget-openid {
    width: 160px;
    margin: 10px auto;
    border: none !important;
}
.widget-openid .widget-content {
    border: 1px solid #ccc;
    background: #fff url(../images/openid-accepted.gif) no-repeat 7px 3px;
    font-size: 12px;
    font-family: Arial, Verdana, sans-serif;
    color: #666;
    margin: 0;
    padding: 0 !important;
}
.widget-openid .widget-content em {
    display: block;
    font-style: normal;
    padding: 34px 9px 9px 68px;
}
.widget-openid .widget-content strong {
    left: -9999px;
    position: absolute;
}
.widget-openid .widget-content a {
    display: block;
    background: #eee;
    text-align: center;
    padding: 5px 3px;
    color: #666;
    text-decoration: underline;
    font-weight: normal;
}

.widget-calendar .widget-content table {
    border-collapse: collapse;
    width: 100%;
}
.widget-calendar .widget-content th, 
.widget-calendar .widget-content td {
    text-align: center;
    width: 14%;
    padding: 2px 0;
}

.input-default {
    background-color: #9AAEC2;
}

.status-indicator {
    display: inline;
    height: 20px;
    width: 20px;
    background: url(../images/indicator-login.gif) no-repeat 0 0;
    padding: 2px 7px;
}


/* From minimilist-red/screen.css */
/* Content */

.asset-name {
    font-size: 22px;
    font-weight: bold;
}

.asset-name a {
    text-decoration: none;
}

.asset-name a:hover {
    text-decoration: underline;
}

.asset-content {
    margin: 5px 0;
}

.asset-more-link {
    font-weight: bold;
}

.asset-meta {
    border-top: 1px solid #ccc;
}

.asset-footer {
    border-top: 1px solid #ccc;
}

.content-nav {
    margin: 5px 0 10px;
}

.archive-title {
    margin: 5px 0 30px;
    font-size: 26px;
    font-weight: bold;
}

.widget-header,
.trackbacks-header,
.comments-header,
.comments-open-header,
.archive-header,
.search-form-header,
.search-results-header {
    margin: 0;
    padding: 5px 0;
    font-size: 18px;
    font-weight: bold;
}

.search-results-header {
    margin-bottom: .25em;
}

.asset-more-link,
.asset-meta,
.typelist-thumbnailed {
    font-size: 11px;
}

/* Footer Widgets */

#footer .widget {
    margin: 10px 0;
}

#footer .widget-content {
    padding-right: 0;
    padding-left: 0;
}

#footer .widget-powered .widget-content {
    padding: 0;
    text-align: left;
}


/* Footer ----------------------------------------------------------------- */

#footer { 
    background-color: #eee;
    border: 1px solid #ddd;
}

#footer-content {
    margin: 20px 0;
}

</code>