JSFiddle - React, Tailwind, and code Playground

HTML

<input class="Submit" type="submit" value="Save" name="action_1">
<input class="Button" type="submit" value="Save as" name="action_2">
<input                type="submit" value="Save and Continue" name="action_3">
<input class="Cancel" type="submit" value="Cancel" name="action_4">

CSS

input:not([class]) {
    background: #001fa4;
}