JSFiddle - React, Tailwind, and code Playground
by joplomacedo
HTML
<div class="btn" disabled="true"></div>
<div class="btn" disabled=true></div>
<div class="btn" disabled="false"></div>
<div class="btn" disabled="false"></div>
<div class="btn" disabled></div>
<div class="btn"></div>
CSS
.btn {
background-color: red;
padding: 1em;
margin-bottom: 1em;
}
.btn.is-disabled,
.btn[disabled]:not([disabled='false']) {
cursor: not-allowed;
-webkit-filter: grayscale(.25);
-moz-filter: grayscale(.25);
-o-filter: grayscale(.25);
filter: grayscale(.25);
opacity: .4;
}