body {
    background-color: #bbb;
}

/*主功能 reset copy excu*/
#headerArea ul li a {
    color: #fff;
    padding: 10px 15px;
}

#sandboxArea {
    padding: 0;
}

#View_iframe {
    height: 100%;
    width: 100%;
    border-right: 1px solid #bbb;
    border-left: 1px solid #bbb;
    border-bottom: 1px solid #bbb;
    vertical-align: text-top;
}

#codeArea {
    border: 1px solid #bbb;
    vertical-align: text-top;
}

#footerArea > div > .row > div:not(:first-child),
#footerArea img {
    display: none;
}

/*#region split */
.split {
    display: flex;
    flex-direction: row;
}

    .split.vertical {
        min-width: 100%;
        flex-direction: column;
        height: 800px;
    }

.gutter {
    background-color: #eee;
    background-repeat: no-repeat;
    background-position: 50%;
}

    .gutter.gutter-horizontal {
        background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAeCAYAAADkftS9AAAAIklEQVQoU2M4c+bMfxAGAgYYmwGrIIiDjrELjpo5aiZeMwF+yNnOs5KSvgAAAABJRU5ErkJggg==");
        cursor: col-resize;
    }

    .gutter.gutter-vertical {
        background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAFAQMAAABo7865AAAABlBMVEVHcEzMzMzyAv2sAAAAAXRSTlMAQObYZgAAABBJREFUeF5jOAMEEAIEEFwAn3kMwcB6I2AAAAAASUVORK5CYII=");
        cursor: row-resize;
    }

/*#endregion */