Fix the placehoder in Draft.js

You have two options:

1. Import Draft.css:

jsx
import 'draft-js/dist/Draft.css';

2. Add the following css code:

css
.DraftEditor-root {
    position: relative;
}
.public-DraftEditorPlaceholder-root{
    position: relative;
}
.public-DraftEditorPlaceholder-inner{
    color: #aaaaaa;
    position: absolute;
}
.DraftEditor-editorContainer {
    background-color: rgba(255,255,255,0);
    border-left: .1px solid transparent;
    position: relative;
    z-index: 1;
}

Both options drive to the same results.