Couleur de fond

Bonjour, je n'arrive pas a changer la couleur de fond de mes widgets sur mon blog,
merci de votre aide par avance

b:include name='quickedit'/> <
</b:includable>
</b:widget>
<b:widget id='HTML1' locked='false' title='Retrouvez moi' type='HTML'>
<b:includable id='main'>
<!-- only display title if it's non-empty -->
<b:if cond='data:title != ""'>
<h2 class='title'><data:title/></h2>
</b:if>
<div class='widget-content'>
<data:content/>
</div>

<b:include name='quickedit'/>
</b:includable>
</b:widget>
<b:widget id='Profile1' locked='false' title='' type='Profile'>
<b:includable id='main'>
<b:if cond='data:title != ""'>
<h2>
<data:title/>
</h2>
</b:if>
<div class='widget-content'>
<b:if cond='data:team'>
<!-- team blog profile -->
<ul>
<b:loop values='data:authors' var='i'>
<li>
<a class='profile-name-link g-profile' expr:href='data:i.userUrl' expr:style='"background-image: url(" + data:i.profileLogo + ");"'>
<data:i.display-name/>
</a>
</li>
</b:loop>
</ul>
<b:else/>
<!-- normal blog profile -->
<b:if cond='data:photo.url != ""'>
<a expr:href='data:userUrl'>
<img class='profile-img' expr:alt='data:photo.alt' expr:height='data:photo.height' expr:src='data:photo.url' expr:width='data:photo.width'/>
</a>
</b:if>
<dl class='profile-datablock'>
<dt class='profile-data'>
<a class='profile-name-link g-profile' expr:href='data:userUrl' expr:style='"background-image: url(" + data:profileLogo + ");"' rel='author'>
<data:displayname/>
</a>
<b:if cond='data:hasgoogleprofile'>
<br/>
<div class='g-follow' data-annotation='bubble' data-height='20' expr:data-href='data:userUrl'/>
</b:if>
</dt>
<b:if cond='data:showlocation'>
<dd class='profile-data'>
<data:location/>
</dd>
</b:if>
<b:if cond='data:aboutme != ""'>
<dd class='profile-textblock'>
<data:aboutme/>
</dd>
</b:if>
</dl>
<a class='profile-link' expr:href='data:userUrl' rel='author'>
<data:viewProfileMsg/>
</a>
</b:if>
<b:include name='quickedit'/>
</div>
</b:includable>
</b:widget>