Adds silver background colour to inputs disabled type email, password, text (#110)

* Adds silver background colour to inputs type email, password, text

* Add example to docs

* Textarea disabled styling

* Revert autoformatting

* fix: text shadow, use :disabled pseudoselector

style.css

@@ -169,6 +169,10 @@ button::-moz-focus-inner {
 :disabled,
 :disabled + label {
   color: var(--button-shadow);
+}
+
+button:disabled,
+:disabled + label {
   text-shadow: 1px 1px 0 var(--button-highlight);
 }
 
@@ -433,6 +437,13 @@ input[type="email"] {
   line-height: 2;
 }
 
+input[type="email"]:disabled,
+input[type="password"]:disabled,
+input[type="text"]:disabled,
+textarea:disabled {
+  background-color: var(--surface);
+}
+
 select {
   appearance: none;
   -webkit-appearance: none;