Edu Blue theme – remove author, date, time

I added the custom css as provided with no change to the pages. This is the css displayed in the editor:

/* =post styles
—————————————— */
.sticky {
font-size: 1em;
color: #1d1d1d;
margin: 5px;
padding: 7px;
background: #f2ffff;
border-left: 3px solid brown;
padding-left: 5px;
}
.entry h1{ }
.entry h3{ margin-left: 0.1212em; }
.entry h4{ margin-left: 0.142em; }
.entry h5{ margin-left: 0.155em; }
.entry h6{ margin-left: 0.33em; }
.entry h2 a {
margin: 0;
padding: 7px 20px 3px 20px;
word-wrap: break-word;
line-height: 1.24;
}
body.blog .entry {
border-bottom: thin solid #aaa;
word-wrap: break-word;
}
.entry {
background: rgba( 250, 250, 250, 0.1 );
word-wrap: break-word;
}
.entry-header a {
color: #12589f;
text-decoration: none;
font-weight: 600;
}
.entry-header {
word-wrap: break-word;
}
.bypostauthor {
color: #888;
line-height: 1.2;
}
.post h2 a:hover,
.entry h2 a:hover {
text-decoration: underline;
color: #1f88c8;
}
.postmetadata,
.categorymeta {
font-size: 90%;
padding: 1px 8px 1px 5px;
margin: 0;
line-height: 12px;
}
.postmetadata {
color: #777;
}
.responses {
float: right;
}
.cat-link,
.edit-link a,
.tag-link a,
.post-categories a {
font-weight: 300 !important;
}
p.edit-link:before {
content: “\2611”;
margin: 0 0.412em 0 1em;
color: #999;
}
p.tag-link:before {
content: “\2691”;
margin: 0 0.412em 0 1em;
color: #999;
}

.authorlinks {
position: relative;
font-weight: 300;
margin-left: 1em;
color: #777;
font-size: 1em;
}
.authorlinks a {
color: #346;
font-size: 1.20em;
font-weight: 300;
text-decoration: none;
}
.authorlinks a span:before {
content: “\270E “;
margin: 0 0.412em 0 1em;
font-size: 1.10em;
color: #999;
}
.entry-content img {
margin: 0 0 1.5em 0;
}
.wp-smiley {
margin: 0 !important;
max-height: 1em;
}
.entry img,
.entry-content img,
img[class*=”align”],
img[class*=”wp-image-“],
div[class*=”attachment_”] {
height: auto; /* Make sure images height and width attributes are scaled reasonable */
max-width: 98.333%;
margin: 3px 11px;
}
.alignnone, img.alignnone, .alignnone img {
max-width: 99.899%;
margin: 0 auto;
}

.entry .size-large,
.entry .size-medium,
.entry .size-thumbnail {
margin: 3px 11px;
}
/* == WP CSS – post_classes == */
.post-id {} .post {}
.page {}
.hentry {}
.entry-content img {
margin: 0 0 1.5em 0;
max-width: 100%;
}

.entry-author-link,
.entry-permalink,
.entry-date,
.entry-meta {
display: none;
}