Animated generate button

flaskr/static/styles.css

@@ -145,7 +145,7 @@ textarea {
   color: #a40f0f;
 }
 
-.submit {
+.wipe {
   margin-left: auto;
   padding: 0.5em 1em 0.5em 1em;
 }
@@ -153,3 +153,44 @@ textarea {
 #body {
   flex-grow: 1;
 }
+
+.wipe {
+  padding: 10px 25px;
+  font-family: "Roboto", sans-serif;
+  font-weight: 500;
+  background: black;
+  outline: none !important;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  position: relative;
+  display: inline-block;
+  text-decoration: none;
+}
+
+.up-wipe {
+  border: 2px solid rgb(255, 255, 255);
+  z-index: 1;
+  color: white;
+}
+
+.up-wipe:after {
+  position: absolute;
+  content: "";
+  width: 100%;
+  height: 0;
+  top: 0;
+  left: 0;
+  z-index: -1;
+  background: rgb(255, 255, 255);
+  transition: all 0.3s ease;
+}
+
+.up-wipe:hover {
+  color: rgb(0, 0, 0);
+}
+
+.up-wipe:hover:after {
+  top: auto;
+  bottom: 0;
+  height: 100%;
+}

flaskr/templates/writing.jinja2

@@ -18,7 +18,13 @@
       }
       decodeURIComponent(document.cookie).split(';').forEach(cookie => {
         [id, value] = cookie.trim().split('=')
-        document.getElementById(id).value = value
+        if (!id || !value) {
+          return
+        }
+        const e = document.getElementById(id)
+        if (e) {
+          e.value = value
+        }
       })
     }
 
@@ -36,7 +42,7 @@
   <h2>The secret cover letter generator</h2>
 
   {% from "_formhelpers.jinja2" import render_field %}
-  <form method=post>
+  <form method=post id="letter-form">
     <dl>
       {{ render_field(form.username) }}
       {{ render_field(form.company) }}
@@ -62,14 +68,14 @@
       </div>
     {% endif %}
 
-    <input
-        class=submit
-        type=submit
-        value="Generate PDF"
+    <a href="javascript:void(0)"
+       class="wipe up-wipe"
       {% if errors %}
-        onclick="clearErrors()"
+        onclick="clearErrors();document.getElementById('letter-form').submit()"
+      {% else %}
+        onclick="document.getElementById('letter-form').submit()"
       {% endif %}
-    >
+    >Generate PDF</a>
   </form>
 </body>