.b-tree-window {
    /*margin-bottom: 30px;*/
    margin-bottom: 20px;
    margin-right: -10px;
    /*margin-top: 20px;*/
}
.b-tree-window .block{
    display: block;
    float: left;
    width: 200px;
    height: 80px;
    background: #000;
    margin-right: 10px;
    box-shadow: 4px 4px 6px rgba(0, 0, 0, 0.38);
    overflow: hidden;
    position: relative;
    margin-bottom: 10px;
    /*margin-bottom: 20px;*/
	width: calc(33.3% - 10px);
}
.b-tree-window .block:after{
    content: "";
    position: absolute;
    width: 30px;
    right: 0;
    top:0;
    height: 100%;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#ffffff+0,000000+100&0+0,1+88 */
    background: -moz-linear-gradient(left, rgba(255,255,255,0) 0%, rgba(31,31,31,1) 88%, rgba(0,0,0,1) 100%); /* FF3.6-15 */
    background: -webkit-linear-gradient(left, rgba(255,255,255,0) 0%,rgba(31,31,31,1) 88%,rgba(0,0,0,1) 100%); /* Chrome10-25,Safari5.1-6 */
    background: linear-gradient(to right, rgba(255,255,255,0) 0%,rgba(31,31,31,1) 88%,rgba(0,0,0,1) 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#000000',GradientType=1 ); /* IE6-9 */
}
.b-tree-window .block:hover .b-txt{
    margin-left: 0;
}
.b-tree-window .block:nth-child(3n){
    margin-right: 0;
}
.b-tree-window img{
    position: absolute;
}
.b-tree-window .title{
    font-size: 12px;
    font-weight: bold;
    color: #71a6d7;
    height: auto;
}
.b-tree-window .b-txt{
    background: rgba(0, 0, 0, 0.73);
    padding-top: 8px;
    line-height: 13px;
    display: block;
    margin-left: 80px;
    padding-left: 10px;
    width: 200px;
    overflow: hidden;
    position: relative;
    height: 80px;
    transition: all 0.2s ease-in-out;
}
.b-tree-window .content{
    padding-top: 4px;
    font-size: 11px;
    line-height: 12px;
    color: #eaeaea;
    display: block;
}
.b-tree-window .to-black{
    position: absolute;
    height: 20px;
    width: 100%;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#ffffff+0,000000+100&0+0,1+100,1+100 */
    background: -moz-linear-gradient(top, rgba(255,255,255,0) 0%, rgba(0,0,0,1) 100%); /* FF3.6-15 */
    background: -webkit-linear-gradient(top, rgba(255,255,255,0) 0%,rgba(0,0,0,1) 100%); /* Chrome10-25,Safari5.1-6 */
    background: linear-gradient(to bottom, rgba(255,255,255,0) 0%,rgba(0,0,0,1) 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#000000',GradientType=0 ); /* IE6-9 */
}
.b-tree-window .collapsed{
    display: none;
}
.b-tree-window .collapsed.opened{
    display: block;
}
.b-tree-window .bt-toggle:hover {
    /*color: #333333;*/
    color: #f78421;
}
.b-tree-window .bt-toggle {
    cursor: pointer;
    /*font-size: 13px;*/
    /*color: #949494;*/
    /*line-height: 16px;*/
    font-size: 16px;
    font-weight: bold;
    line-height: 1.2;
    color: #0048b3;
    transition: all .3s;
}