Feat: Extract styles to separate CSS file

style.css

@@ -0,0 +1,106 @@
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+    margin: 0;
+    padding: 0;
+    border: 0;
+    font-size: 100%;
+    font: inherit;
+    vertical-align: baseline;
+}
+
+article, aside, details, figcaption, figure,
+footer, header, hgroup, menu, nav, section {
+    display: block;
+}
+
+body {
+    font-family: 'Open Sans', sans-serif;
+    background-color: #002b4d;
+    width: 500px;
+    height: 320px;
+    line-height: 1;
+    border: 1.5px solid rgb(0, 126, 199);
+}
+
+#overbar {
+    padding: 1.5%;
+    font-size: 10px;
+    font-weight: bold;
+    margin-bottom: 0px;
+    color: rgb(229, 244, 255, 0.6);
+    border-bottom: 1px solid rgb(0, 126, 199, .5);
+}
+
+#homepage {
+    position: fixed;
+    text-decoration: none;
+    color: yellow;
+    right: 2.5%;
+}
+
+#textarea {
+    background-color: #e6e6e6;
+    margin: 1.5%;
+    width: 95.5%;
+    height: 69%;
+    font-family: 'Open Sans', sans-serif;
+    font-size: 13px;
+    font-style: normal;
+    font-variant: normal;
+    font-weight: 400;
+    line-height: 20px;
+}
+
+input {
+    font-size: 11.5px;
+}
+
+#encodeButton {
+    display: inline-block;
+    margin-bottom: 0px;
+    margin-left: 1.5%;
+    color: #002b4d;
+    cursor: pointer;
+}
+
+#decodeButton {
+    margin-bottom: 0px;
+    margin-left: 1.5%;
+    color: #002b4d;
+    cursor: pointer;
+}
+
+select {
+    display: inline-block;
+    margin-bottom: 0px;
+    margin-left: 1.5%;
+    color: #002b4d;
+    background-color: #e6e6e6;
+    text-align: center;
+    font-size: 11px;
+    width: 8.5em;
+}
+
+#notice {
+    font-size: 10px;
+    margin-top: 1.5%;
+    padding: .8% 0% 0% 1.7%;
+    color: rgb(229, 244, 255, 0.6);
+    border-top: 1px solid rgb(0, 126, 199, .5);
+}
+
+#versions {
+    color: rgb(0, 126, 199);
+    text-decoration: none;
+}