Как запретить растягивание блочного элемента?

.sb-content-block                    { display: inline-table; position: relative; width: 376px; height: auto;}
.sb-content                            {}
.sb-content time                    { display: block; padding: 5px 2px; font-size: 12px; color: #999; }

.ban240                                { width: 140px; float: left; }
.ban240:first-child                    { margin: 0 20px 0 0; }

.ban240x400                            { margin: 0 0 5px 0; height: 400px; overflow: hidden; background-image: url(../images/loading-small.gif); background-repeat: no-repeat; background-position: center center; }
.baninfo                            { background-image: url(../images/dlet-baninfo.png); background-repeat: no-repeat; width: 200px; height: 40px; line-height: 50px; padding: 0 0 0 40px; }

.adlink                                { text-align: center; padding: 10px 0 0 0; }

.videonews-img                        { background-size: cover; width: 162px; height: 102px;

    -webkit-transition: all 0.5s ease;
       -moz-transition: all 0.5s ease;
         -o-transition: all 0.5s ease;
            transition: all 0.5s ease; }

.videonews-img:hover                { background-position: 0px -102px;}

.videonews-img a                    { display: block; width: 141px; height: 102px; text-indent: -9999px;}

a.videoa                            { font-size: 18px; }

.videolist li                        { float: left; width: 141px; height: 175px; overflow: hidden; padding: 8px 29px 8px 8px; margin: 0 0 20px 0; background-color: #e7e7e7; border-bottom: 5px solid #e7e7e7; }

.videolist li:nth-child(2n+1)        { margin: 0 20px 20px 0; }

.videolist li:nth-child(5)            { margin: 0 20px 0 0; }
.videolist li:nth-child(6)            { margin: 0 0 0 0; }

ul.videtuts                            { width: 140px; float: left; }
ul.videtuts:first-child                { margin: 0 20px 0 0; }

.videtuts li                        { line-height: 18px; padding: 8px 0 8px 20px; border-bottom: 1px solid #b7b7b7; background-image: url(../images/dlet-listarrow.png); background-repeat: no-repeat; background-position: left 11px; }
.videtuts li a                        { color: #404040; }
.videtuts li a:hover                { color: #0093c8; }
ul.popnews                            { color: #999; }
.popnews li                            { line-height: 18px; padding: 8px 0 8px 0; border-bottom: 1px solid #b7b7b7; }

.popnews li h3                        { display: inline;}

.popnews li h3 a                    { color: #404040; font-weight: normal; }
.popnews li h3 a:hover                { color: #0093c8; font-weight: normal; }

.popnews li a                        { color: #6a6a6a; }
.popnews li a:hover                    { color: #404040; }

<div class="sb-content-block">
                <div class="sb-content">
                                <ul class="videolist">
                                {custom category="1 - 100" template="videonews" aviable="global" navigation="no" from="0" limit="6" fixed="yes" order="date" cache="yes"}
                                </ul>
                                <div class="clear"></div>
                            </div>
                    </div>

.sb-content                            { display: block; width: 376px;}

.videonews-img                        { background-size: cover; width: 162px; height: 102px;


                    -webkit-transition: all 0.4s ease;
                       -moz-transition: all 0.4s ease;
                         -o-transition: all 0.4s ease;
                            transition: all 0.4s ease;     }

.videonews-img:hover                { background-position: 0px -102px;}

.videonews-img a                    { display: block; width: 141px; height: 102px; text-indent: -9999px;}

a.videoa                            { font-size: 18px; }

.videolist li                        { float: left; width: 141px; height: 175px; overflow: hidden; padding: 8px 29px 8px 8px; margin: 0 0 20px 0; background-color: #e7e7e7; border-bottom: 5px solid #e7e7e7; }
.videolist li:nth-child(2n+1)        { margin: 0 20px 20px 0; }

<div class="sb-content">
                                <ul class="videolist">
                                {custom category="1 - 100" template="videonews" aviable="global" navigation="no" from="0" limit="6" fixed="yes" order="date" cache="yes"}
                                </ul>
                                <div class="clear"></div>
                            </div>