main.css

body {
    margin: 0;
    background: #333333;
}

#json {
    display: none;
}

.terminal {
    position: relative;
    color: white;
    font-family: 'courier new', courier, serif;
    font-size: 13px;
    word-break: break-word;
}

#output {
    overflow: scroll;
    /* hide horizontal scrollbar on Windows */
    overflow-x: hidden;
    padding: 0 15px;
}

.terminal__cursor {
    float: left;
    padding: 7px;
}

#input {
    width: 90%;
    background: #333333;
    color: white;
    border: none;
    font-family: 'courier new', courier, serif;
    font-size: 14px;
    height: 29px;
}

.terminal__list {
    padding: 0;
    list-style-type: none;
}

.terminal__list li {
    display: inline-block;
    margin-right: 40px;
}

.terminal__output {

}

.terminal__error {
    color: #CF0000;
}