ot-editor {
    border: 1px solid grey;
    display: block;
    padding: 5px;
}

ot-editor .opentok-editor-mode-select {
    float: right;
}

ot-editor .opentok-editor-connecting {
    width: 100%;
    text-align: center;
    position: absolute;
    top: 10%;
}
ot-editor {
    border: 1px solid grey;
    display: block;
    padding: 5px;
}

ot-editor .opentok-editor-mode-select {
    float: right;
}

ot-editor .opentok-editor-connecting {
    width: 100%;
    text-align: center;
    position: absolute;
    top: 10%;
}

ot-editor div.opentok-editor, ot-editor .CodeMirror {
    width: 100%;
    height: 100%;
}
Make the CodeMirror editor fill ot-editor
Make the CodeMirror editor fill ot-editor
