.sparql-preview-div {
    background-color:#DDD;
    float:left;
}

.sparql-preview-label {
    font-size:14px;
}

.sparql-readonly-field {
    background-color:#DDD;
}

.sparql-preview-loading {
    margin:auto;
    width:100%;
    top:40%;
    text-align:center;
    position:fixed;
    z-index:9999;
    font-size: 22px;
    font-weight: bold;
}
.sparql-preview-loading > div {
    background-color:gray;
    width:300px;
    margin:auto;
}