.R3_wrapper, .R3_sidebar{
    overflow: hidden;
}
.R3_main{
    position: absolute;
    bottom: 0;
    top: 0;
    left: 0;
    right: 0;
}
.R3_close, .R3_open{
    background-color: #aaa;
    cursor: pointer;
}
.R3_sidebar{          
    position: absolute;
}

.R3_bar {
    background-color:#ccc;
    position: absolute;
    overflow: hidden;
}

.R3_top{
    width: 100%;
    top: 0;
}
.R3_resize.R3_top {
    cursor: row-resize;
}
.R3_bar.R3_top{
    height: 6px;
    -webkit-transition: .4s top;
    -moz-transition: .4s top;
    -ms-transition: .4s top;
    -o-transition: .4s top;
    transition: .4s top;            
}
.R3_button.R3_top{
    position: absolute;
    width: 25px;
    height: 100%;
    right: 0;
}
.R3_main.R3_top{
    -webkit-transition: .4s top;
    -moz-transition: .4s top;
    -ms-transition: .4s top;
    -o-transition: .4s top;
    transition: .4s top;
}

.R3_button.R3_top.R3_open:before, .R3_button.R3_bottom.R3_close:before{
    content: "";
    position: absolute;
    cursor: pointer;
    width: 100%;
    height: 100%;
    background: url(icon/arrow.png) center center no-repeat;
    background-size: contain;
    -webkit-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    -o-transform: rotate(90deg);
    transform: rotate(90deg);
}
.R3_button.R3_top.R3_close:before, .R3_button.R3_bottom.R3_open:before{
    content: "";
    position: absolute;
    cursor: pointer;
    width: 100%;
    height: 100%;
    background: url(icon/arrow.png) center center no-repeat;
    background-size: contain;
    -webkit-transform: rotate(-90deg);
    -moz-transform: rotate(-90deg);
    -ms-transform: rotate(-90deg);
    -o-transform: rotate(-90deg);
    transform: rotate(-90deg);
}
.R3_handler.R3_bottom, .R3_handler.R3_top {
    left: 50%;
    margin-left: -12.5px;
}
.R3_handler.R3_bottom:before, .R3_handler.R3_top:before {
    content: "";
    position: absolute;
    width: 6px;
    height: 16px;
    left: 50%;
    background: url('icon/drag.png') center center no-repeat;
    background-size: contain;
    -webkit-transform: rotate(-90deg);
    -moz-transform: rotate(-90deg);
    -ms-transform: rotate(-90deg);
    -o-transform: rotate(-90deg);
    transform: rotate(-90deg);
    -webkit-transform-origin: 0;
    -moz-transform-origin: 0;
    -ms-transform-origin: 0;
    -o-transform-origin: 0;
    transform-origin: 0;
} 
.R3_sidebar.R3_bottom, .R3_sidebar.R3_top{
    -webkit-transition: .4s height;
    -moz-transition: .4s height;
    -ms-transition: .4s height;
    -o-transition: .4s height;
    transition: .4s height;
}

.R3_bottom{
    width: 100%;
    bottom: 0;
}
.R3_resize.R3_bottom {
    cursor: row-resize;
}
.R3_bar.R3_bottom{
    height: 6px;
    -webkit-transition: .4s bottom;
    transition: .4s bottom;            
}
.R3_button.R3_bottom{
    position: absolute;
    width: 25px;
    height: 100%;
    right: 0;
}
.R3_main.R3_bottom{
    -webkit-transition: .4s bottom;
    -moz-transition: .4s bottom;
    -ms-transition: .4s bottom;
    -o-transition: .4s bottom;
    transition: .4s bottom;
}
.R3_main.R3_top.R3_bottom{
    -webkit-transition: .4s bottom, .4s top;
    -moz-transition: .4s bottom, .4s top;
    -ms-transition: .4s bottom, .4s top;
    -o-transition: .4s bottom, .4s top;
    transition: .4s bottom, .4s top;
}

.R3_right{
    height: 100%;
    right: 0;
}
.R3_resize.R3_right {
    cursor: col-resize;
}
.R3_bar.R3_right{
    width: 6px;
    -webkit-transition: .4s right;
    -moz-transition: .4s right;
    -ms-transition: .4s right;
    -o-transition: .4s right;
    transition: .4s right;
}
.R3_button.R3_right{
    position: absolute;
    height: 25px;
    width: 100%;
}
.R3_main.R3_right{
    -webkit-transition: .4s right;
    -moz-transition: .4s right;
    -ms-transition: .4s right;
    -o-transition: .4s right;
    transition: .4s right;
}

.R3_sidebar.R3_right, .R3_sidebar.R3_left{
    -webkit-transition: .4s width;
    -moz-transition: .4s width;
    -ms-transition: .4s width;
    -o-transition: .4s width;
    transition: .4s width;
}
.R3_button.R3_right.R3_open:before, .R3_button.R3_left.R3_close:before{
    content: "";
    position: absolute;
    cursor: pointer;
    width: 100%;
    height: 100%;
    background: url(icon/arrow.png) center center no-repeat;
    background-size: contain;
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
}
.R3_button.R3_right.R3_close:before, .R3_button.R3_left.R3_open:before{
    content: "";
    position: absolute;
    cursor: pointer;
    width: 100%;
    height: 100%;
    background: url(icon/arrow.png) center center no-repeat;
    background-size: contain;
}
.R3_handler.R3_left, .R3_handler.R3_right {
    top: 50%;
    margin-top: -12.5px;
}
.R3_handler.R3_left:before, .R3_handler.R3_right:before {
    content: "";
    position: absolute;
    top: 50%;
    height: 16px;
    width: 6px;
    background: url('icon/drag.png') center center no-repeat;
    background-size: contain;
} 

.R3_left{
    height: 100%;
    left: 0;
}
.R3_resize.R3_left {
    cursor: col-resize;
}
.R3_bar.R3_left{
    width: 6px;
    -webkit-transition: .4s left;
    -moz-transition: .4s left;
    -ms-transition: .4s left;
    -o-transition: .4s left;
    transition: .4s left;            
}
.R3_button.R3_left{
    position: absolute;
    height: 25px;
    width: 100%;
}
.R3_main.R3_left{
    -webkit-transition: .4s left;
    -moz-transition: .4s left;
    -ms-transition: .4s left;
    -o-transition: .4s left;
    transition: .4s left;
}
.R3_main.R3_left.R3_right{
    -webkit-transition: .4s left, .4s right;
    -moz-transition: .4s left, .4s right;
    -ms-transition: .4s left, .4s right;
    -o-transition: .4s left, .4s right;
    transition: .4s left, .4s right;
}

.R3_bar.R3_ghostbar{
    opacity:0.5;
    z-index:999;
    -webkit-transition: none;
    transition: none;
}

.R3_ghostwrapper{
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 998;
    background: url('icon/transparent.png');
}