html - 清除两者的 css 问题 - 差距很大

Question

HTML

 <div id="site-content">
                <div class="site-content">
                    <div id="site-content-left">
                    <h1>ՆՈՐ ԿԱՌՈՒՑՎՈՂ ԴՊՐՈՑԱՇԵՆՔ</h1>
                    <div id="site-content-dproc">
                        <div id="slider">
                            <div class="slide-img">img</div>
                            <div class="slide-text">
                                Consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.Consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
                            </div>
                            <div class="clear"></div>
                            <div class="slide-read-more">
                                <a href="/arm/dprocashinutyun">Ավելին...</a>
                            </div>
                        </div>
                    </div>
                    </div>
                <div id="site-content-right">
                    <div id="embeddedExample" style="">
                        <div id="embeddedCalendar" style="margin-left: auto; margin-right: auto">
                        </div>
                    </div>
                <div id="site-content-ushadrutyun">
                <?php
                while($result_ushadrutyun_main_arm = mysql_fetch_array($query_main_ushadrutyun_arm)){
                    print $result_ushadrutyun_main_arm['short_content'];
                }
                ?>
                </div>
                </div>
                <div class="clear"></div>
                big gap
                </div>
            </div>

CSS

#site-content{
    background:red;
    margin-left:250px;
}
.site-content {
width:740px;
margin:0 auto;
padding:25px 0 0 0;
}
#site-content-left{float:left;background:orange;}
#site-content-right{margin:5px 0 5px 10px;float:left;background:blue;}
#site-content-left h1{margin:0;font-family:erevan;font-size:25px;color:#0463a7;}
#site-content-dproc {background:url('../images/site-dproc.png');width:490px;height:370px;padding:10px;}
#site-content-dproc:hover{background:url('../images/site-dproc-hover.png');}
#site-content-news{float:left;}
#site-content-social{float:left;}
#site-content-news  .site-news-grey {background:url('../images/site-news-background.png') no-repeat;width:270px;height:182px;float:left;padding:25px;margin:0 10px 10px 0;display: inline-block}
#site-content-social #social-twitter{background:url('../images/social-twitter.png') no-repeat;width:70px;height:70px;margin-bottom:5px;display:block;}
#site-content-social #social-youtube{background:url('../images/social-youtube.png') no-repeat;width:70px;height:69px;margin-bottom:5px;display:block;}
#site-content-social #social-facebook{background:url('../images/social-facebook.png') no-repeat;width:70px;height:72px;margin-bottom:5px;display:block;}
#site-content-social #social-google{background:url('../images/social-google.png') no-repeat;width:70px;height:70px;margin-bottom:5px;display:block;}
#site-content-social #social-dasaran{background:url('../images/social-dasaran.png') no-repeat;width:70px;height:262px;margin-bottom:5px;display:block;}
#site-content-grey-news{width:670px;}
#site-content-ushadrutyun{
    background:url('../images/content-ushadrutyun.png') no-repeat;
    width:198px;
    height:123px;
    padding:10px;
    word-wrap: break-word;
    font-weight:bold;
    text-align: center;
    font-family:erevan;
    overflow:hidden;
    color:#0463a7;
    margin:15px 0 0 0;
}



#site-content-ushadrutyun p {margin:0;}
#aaa {background:url('../images/news-calq.png') no-repeat;width:139px;height:78px;position:relative;top:-50px;}
#site-content-news h1 {margin:15px 0;font-family:erevan;font-size:25px;color:#0463a7;text-align:center;}
#corner-calq a {
    text-decoration:none;
    font-family:erevan;
    color:#0463a7;
}
#corner-calq div {
    -moz-transform: rotate(-30deg); 
    -ms-transform: rotate(-30deg); 
    -webkit-transform: rotate(-30deg);
    -o-transform: rotate(-30deg); 
    transform: rotate(-30deg);
    }
#corner-calq a:hover {text-decoration:underline;}


.slide-img {float:left;margin-right:10px;}
.slide-text {text-align:justify;font-size:15px;}
.slide-text {height:250px;word-wrap:break-word;}
.slide-read-more {float:right;}
.slide-read-more  a{    margin:80px 0 0 30px;-moz-transform: rotate(-30deg); 
    -ms-transform: rotate(-30deg); 
    -webkit-transform: rotate(-35deg);
    -o-transform: rotate(-30deg); 
    transform: rotate(-30deg);}

之后是尺寸接近 300px 的大差距。有什么解决办法吗？

Answer 1

你忘了为 clear 类添加 css 属性

.clear {clear:both }