[解決済み] マージン/パディングが機能しない

質問

メインdivの中に2つのメインdivがあります。試しにmarginとpaddingを大きな数値で追加してみましたが、うまくいきません。なぜ、間にmarginやpaddingを入れることができないのでしょうか？助けてください。

HTML

 <div id="mainWrapper">
    
    <header class="container">
    
        <div id="nav2" class="container">
            <ul class="nav2a">
                <li><a href="#">Login</a></li>
                <li><a href="#">Quick Search</a></li>
                <li><a href="#">Advanced Search</a></li>
                <li><a href="#">English <i class="fa fa-caret-down"></i></p></a>
                    <ul class="nav2b">
                        <li><a href="#">French</a></li>
                        <li><a href="#">Italian</a></li>
                        <li><a href="#">Spanish</a></li>
                        <li><a href="#">German</a></li>
                    </ul>
                </li>
            </ul>
        </div> <!-- end nav2 -->
        
    </header>
    
    <div class="clearfloat"></div>

   <div id="fullNav" class="container">
            
        <div id="logoSymbol">
            <a href="#">
                <img src="images/gpj-baker-symbol.png" width="54" height="51" />
            </a>
        </div>
        
        <div id="logoText">
            <a href="#">
                <img src="images/gpj-baker-text.png" width="200" height="30" />
            </a>
       </div>

        <div class="clearfloat"></div>

        <div id="mainNav">
             <ul class="nav1a">
                 <li><a href="#">Brands</a></li>
                 <li><a href="#">Fabrics & Wallcoverings</a></li>
                 <li><a href="#">Contact</a></li>
                 <li><a href="#">About Us</a></li>
                 <li><a href="#">Where To Buy</a></li>
                 <li><a href="#">Press</a></li>
            </ul>
        </div>
        
        <div class="clearfloat"></div>

        <div class="hr"><hr/></div>
        
        <div class="clearfloat"></div>

    </div> <!-- end fullNav -->
                                    
    <div class="clearfloat"></div>

    <div id="brandContainer" class="container">
       
        <div id="breadcrumbs" class="container">
            <ul class="breadInfo">
                <li><a href="#">Home</a></li>
                <li><a href="brands.html" class="currentPg">Brands</a></li>
            </ul>
        </div> <!-- end breadIcrumbs -->
                                    
        <div class="clearfloat"></div>

        <div class="brandList">
        
            <div class="brandImg">
                <a href="#"><img src="http://placehold.it/442x294" /></a>
            </div>
            
            <div class="brandCopy">
                <a href="#">
                    <img src="images/gpj-baker-text.png" width="162" height="25" />
                </a>
                <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer dui ex, pharetra a commodo maximus, luctus id ligula. Curabitur tempus arcu ac orci fringilla varius.</p>
                
                <p>Cras hendrerit, mi interdum varius luctus, nisl lectus accumsan mauris, eu tristique arcu massa et arcu. Vivamus venenatis purus blandit, placerat urna eget, faucibus mauris.</p>
                <a href="#">Explore <i class="fa fa-caret-right"></i></a>
          </div>
            
        </div> <!-- end brandList -->

        <div class="clearfloat"></div>

        <div class="brandList">
        
            <div class="brandImg">
                <a href="#"><img src="http://placehold.it/442x294" /></a>
            </div>
            
            <div class="brandCopy">
                <a href="#">
                    <img src="images/gpj-baker-text.png" width="162" height="25" />
                </a>
                <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer dui ex, pharetra a commodo maximus, luctus id ligula. Curabitur tempus arcu ac orci fringilla varius.</p>
                
                <p>Cras hendrerit, mi interdum varius luctus, nisl lectus accumsan mauris, eu tristique arcu massa et arcu. Vivamus venenatis purus blandit, placerat urna eget, faucibus mauris.</p>
                <a href="#">Explore <i class="fa fa-caret-right"></i></a>
          </div>
            
        </div> <!-- end brandList -->
        
    </div><!-- end brandContainer -->

CSS

html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit;
vertical-align: baseline;} /* HTML5 display-role reset for older browsers */ article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {display: block;} body {line-height: 1;} ol, ul {list-style: none;} blockquote, q {quotes: none;} blockquote:before, blockquote:after, q:before, q:after {content: ''; content: none;} table {border-collapse: collapse; border-spacing: 0;}

body {
    font-size: 16px;
    text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p, a {
    font-family: "Lato", Helvetica, Arial, sans-serif;
}

.clearfloat {
    clear: both;
}

#mainWrapper {
    margin: 0 auto;
    max-width: 1280px;
    vertical-align: middle;
    width: 100%;
}

.container {
    margin: 0 auto;
    max-width: 980px;
    vertical-align: middle;
    width: 100%;
}

header .container {
    display: block;
    float: right;
}

header #nav {
    float: right;
}

div.hr {
    border: 0.01em solid #676767;
}

#nav2 {
    float: right;
    font-size: 12px;
    font-weight: 400;
    margin: 0 auto;
    padding: 5px 0;
    text-transform: uppercase;
}

    #nav2 a:link,
    #nav2 a:visited {
        color: #676767;
    }
    
    #nav2 a:hover {
        color: #4284b8;
    }

    #nav2 li {
        vertical-align: middle;
        float:left;
    }

    #nav2 li,
    #nav2 li a {
        display: inline-block;
        text-decoration: none;
    }
    
    #nav2 li a {
        padding: 5px 10px;
    }

    #nav2 li ul {
        display: none;
        position: absolute;
    }
    
    #nav2 li:hover ul {
        display: block;
    }
    
    #nav2 li ul li {
        clear: both;    
    }
    
    #nav2 .nav2a {
        float: right;
    }

#fullNav {
    text-align: center;
}

    #fullNav #logoSymbol,
    #fullNav #logoText {
        display: inline;
        margin: 0 auto;
        padding: 0 5px;
    }
    
#mainNav {
    font-size: 12px;
    font-weight: 400;
    margin: 0 auto;
    padding: 5px 0;
    text-transform: uppercase;
}

    #mainNav a:link,
    #mainNav a:visited {
        color: #676767;
    }
    
    #mainNav a:hover {
        color: #4284b8;
    }

    #mainNav li {
        vertical-align: middle;
    }

    #mainNav li,
    #mainNav li a {
        display: inline-block;
        text-decoration: none;
    }
    
    #mainNav li a {
        padding: 5px 25px;
    }
        
    #mainNav li ul {
        display: none;
        position: absolute;
    }
    
    #mainNav li:hover ul {
        display: block;
    }
    
    #mainNav li ul li {
        clear: both;    
    }

#footerNav {
    float: right;
    font-size: 12px;
    font-weight: 400;
    margin: 0 auto;
    padding: 5px 0;
    text-transform: uppercase;
}

    #footerNav a:link,
    #footerNav a:visited {
        color: #676767;
    }
    
    #footerNav a:hover {
        color: #6e8878;
    }

    #footerNav li {
        vertical-align: middle;
        float:left;
    }

    #footerNav li,
    #footerNav li a {
        display: inline-block;
        text-decoration: none;
    }
    
    #footerNav li a {
        padding: 5px 10px;
    }
        
    #footerNav li ul {
        display: none;
        position: absolute;
    }
    
    #footerNav li:hover ul {
        display: block;
    }
    
#nav3b {
    display: none;
    clear: both;    
}

#nav3b a:hover {
    display: block;
}
    
    #footerNav .nav3a {
        float: right;
    }

#breadcrumbs {
    float: right;
    font-size: 9px;
    font-weight: 400;
    margin: 0 auto;
    text-transform: uppercase;
}

    #breadcrumbs .currentPg {
        color: #676767;
        font-weight:bold;
    }

    #breadcrumbs a:link,
    #breadcrumbs a:visited {
        color: #8b8b8b;
    }
    
    #breadcrumbs a:hover {
        color: #4284b8;
    }

    #breadcrumbs li {
        vertical-align: middle;
        float:left;
    }
        
        #breadcrumbs li {
            padding: 0 .25em 0 0;
        }
        
        #breadcrumbs li:after {
            content: " | ";
            display: inline-block;
            font-size: 100%;
            margin: 0 0 0 1.25em;
        }
        
        #breadcrumbs li:last-child:after {
            content: " ";
        }
        
        #breadcrumbs li,
        #breadcrumbs li a {
            display: inline-block;
            text-decoration: none;
        }
        
        #breadcrumbs li a {
            padding: 5px 10px;
        }
    
        #breadcrumbs li a:last-child {
            padding-right: 0;
        }
        
    #breadcrumbs .breadInfo {
        float: right;
        padding-bottom: 5px;
    }

.brandList {
    display: inline;
    overflow: auto;
    text-align: center;
    vertical-align: middle;
    width: 100%;
}

.brandImg {
    display: block;
    float: left;
    margin: 0 auto;
    max-width: 442px;
    padding-right: 8px;
    vertical-align: middle;
    width: 50%;
}

.brandCopy {
    display: block;
    float: left;
    font-size: 12px;
    font-weight: 400;
    margin: 0 auto;
    overflow: hidden;
    padding-left: 8px;
    position: relative;
    text-transform: uppercase;
    vertical-align: middle;
    width: 50%;
}

    .brandCopy p {
        display: block;
        font-size: 16px;
        text-transform: none;
        line-height: 150%;
    }

    .brandCopy .currentPg {
        color: #676767;
        font-weight:bold;
    }

    .brandCopy a:link,
    .brandCopy a:visited {
        color: #4284b8;
        font-weight: bold;
        text-decoration: none;
    }
    
    .brandCopy a:hover {
        color: #959595;
    }
    
    .brandCopy .breadInfo {
        float: right;
        padding-bottom: 5px;
    }

    .brandCopy a img {
        margin: 0 auto;
        margin-bottom: 16px;
        max-width: 442px;
        text-align: center;
    }

    .brandCopy p {
        margin-bottom: 16px;
        overflow: auto;
        text-align: left;
    }

EDIT: フルCSSを追加しました。

解決するには？

OK、では、マージンとパディングを追加しようとしたのは .brandList を持つdivは display: inline プロパティを使用します。これを display: inline-block で、マージンやパディングが機能するはずです。(確認 http://tympanus.net/codrops/css_reference/display/ ).