No display in IE

It excuses but really I do not succeed to resolve this problem!
1. In style.css I put:

/* block theme styles */
.blocco01 { background: #F2F0CF; }
.blocco01 h2 { color: #8D1019; }
.blocco01 a { color: #8D1019; }

.blocco02 { background:#8D1019; color:#fff; }
.blocco02 h2 { color:#F2F0CF; }
.blocco02 a { color: #F2F0CF; }

.blocco03 { background:#001F46; color:#F2F0CF; }
.blocco03 h2 { color:#F2F0CF; }
.blocco03 a { color: #fff; }

.blocco04 { background: #F2F0CF; color: #1D2326; }
.blocco04 h2 { background: #886A2E; border-top: 1px solid #561A25; border-bottom: 1px solid #561A25; color: #F2F0CF; }
.blocco04 a { color: #8D1019; }

.blocco05 { background: #8D1019; color: #F2F0CF; }
.blocco05 h2 { background: #001F46; border-top: 1px solid #886A2E; border-bottom: 1px solid #886A2E; color: #F2F0CF; }
.blocco05 a { color: #fff; }

.blocco06 { background: #001F46; color: #F2F0CF; }
.blocco06 h2 { background: #8D1019; border-top: 1px solid #886A2E; border-bottom: 1px solid #886A2E; color: #F2F0CF; }
.blocco06 a { color: #fff; }

.blocco07 { border: 1px solid #8D1019; }
.blocco07 h2, .blocco07 a { color: #8D1019; }

.blocco08 { border: 1px solid #001F46; }
.blocco08 h2, .blocco08 a { color: #001F46; }

.blocco09 { background: #8D1019;  color:#F2F0CF; }
.blocco09 a { color:#fff; }

.blocco10 { background: #001F46;  color:#F2F0CF; }
.blocco10 a { color:#fff; }

2. I created 10 file blocco01, blocco02... blocco10.tpl.php and introduced to the inside of the directory of the subject
3. in blocco01.tpl.php I put:

 <div class="block block-<?php print $block->module; ?>" id="block-<?php print $block->module; ?> blocco01 ">
    <h2 class="title"><?php print $block->subject; ?> </h2>
    <h4 class="content"><?php print $block->content; ?> </h4>
</div> 

to make to recall the template from style. css
4. In setting-->Block Theme i put:

blocco01|Verde
blocco02|Arancio
blocco03|Giallo
blocco04|Azzurro
blocco05|Viola-blu
blocco06|Viola-Blu
blocco07|aa
blocco08|ss
blocco09|dd
blocco10|ff

Why it does not work?
I am secure that it I am discussed of a mistake of mine but where mistake?

I have open this argument with a new post. You excuse me