datatable.directory/public/vendor/php-sandbox/styles.css

body, textarea, input {
    font-size: 12px;
    font-family: "Source Code Pro", monospace;
}

body {
    background: #191A16;
    color: #F0F0F0;

    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;

    overflow: hidden;
}

/* ace-editor requires to define styles by id (specificity) */
.editor#editor {
    width: 100%;

    position: relative;
    flex: 1 1 auto;
}

.console-wrapper {
    flex: 1 1 auto;
    display: flex;
}

.footer-wrapper {
    flex: 0 1 auto;
}

a:hover {
    text-shadow: 0 0 2px white;
}

a {
    cursor: pointer;
}

.expand {
    display: block;
    margin-bottom: 5px;
}

.output, .input {
}

.output-wrapper, .input-wrapper {
    flex: 1 1 50%;
    position: relative;
}

.output {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    overflow: auto;
    padding: 0 5px;
    font-size: 18px;
    white-space: pre-wrap;
}

.output h1 {
    margin: .5em 0 0 0;
}

.output p, .output pre {
    margin: .5em 0;
    -webkit-margin-before: 0;
    -webkit-margin-after: 0;
}

.input-wrapper {
    border-right: 4px solid #686860;
}

.input-wrapper form {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
}

.input {
    flex: 1 1 auto;
    display: flex;
}

.statusbar {
    padding: 3px 5px;
    background: #686860;
    text-shadow: 0 -1px 1px black;
    height: 35px;
    line-height: 20px;
    position: relative;
    color: white;
    display: flex;
    align-items: center;
}

.runtime-info {
    text-align: right;
    flex-grow: 1;
    padding-right: 10px;
    white-space: nowrap;
}

.statusbar a {
    padding: 0 3px 0 8px;
}

.position {
    white-space: nowrap;
}

input[type=submit] {
    width: 80px;
    font-weight: bold;
}

input[type=submit], #saves {
    height: 30px;
}

.output img.loader {
    display: none; /*it's ugly*/
}

.help {
    width: 33%;
    float: left;
    white-space: pre;
}

.footer {
    width: 100%;
    clear: left;
    text-align: center;
    color: #aaa;
}

.footer a {
    color: #aaa;
}

.control-char {
    background: #000;
    color: #fff;
    margin-left: 2px;
    margin-right: 2px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    padding: 1px 2px;
}