json-viewer.css

.json-container {
    font-size: 13px;
    line-height: 1.2;
    font-family: monospace;
    padding-left: 0;
    margin-left: 20px;
}
.json-container,
.json-container ul{
    list-style: none !important;
}
.json-container ul{
    padding: 0px !important;
    padding-left: 20px !important;
    margin: 0px !important;
}

.json-container li {
    position: relative;
}

.json-container > li  > .key,
.json-container .array .key{
    display: none;
}

.json-container .array .object .key{
    display: inline;
}

.json-container li:after {
    content: ",";
}

.json-container li:last-child:after {
    content: "";
}

.json-container .null{
    color: #999;
}
.json-container .string{
    color: #4e9a06;
}
.json-container .number{
    color: #a40000;
}
.json-container .boolean{
    color: #c4a000;
}
.json-container .key{
    color: #204a87;
}
.json-container .expanded{
    cursor: pointer;
}

.json-container .expanded:before{
    content: "-";
    font-size: 16px;
    width: 13px;
    text-align: center;
    line-height: 13px;
    font-family: sans-serif;
    color: #933;
    position: absolute;
    left: -15px;
    top: 3px;
}

.json-container .collapsed:before{
    content: "+";
    font-size: 14px;
    color: #000;
    top: 1px;
}

.json-container li .collapsed ~ .close:before {
    content: "... ";
    color: #999;
}

.json-container .hidden ~ ul {
  display: none;
}