styles.css

.editor_atto_content .span2,
.editor_atto_content .span3,
.editor_atto_content .span4,
.editor_atto_content .span6 { border: 2px #ddd dashed; }
.bsgridtemplateicon img { width: 35px; height: 35px; }
a.bsgridtemplateicon {
    border-color: #ccc #ccc #b3b3b3;
    border-radius: 5px;
    border-style: solid;
    border-width: 1px;
    display: inline-block;
    margin: 9px 0 0 9px;
    padding: 15px;
    background: -webkit-linear-gradient(#fff, #f2f2f2);
    background: -o-linear-gradient(#fff, #f2f2f2);
    background: -moz-linear-gradient(#fff, #f2f2f2);
    background: linear-gradient(#fff, #f2f2f2);
    -webkit-box-shadow: 0px 2px 2px 0px rgba(100,100,100,0.1);
    -moz-box-shadow: 0px 2px 2px 0px rgba(100,100,100,0.1);
    box-shadow: 0px 2px 2px 0px rgba(100,100,100,0.1);
}