added source file headers to all css files

css/about.css

@@ -1,4 +1,10 @@
-/* About Me*/
+/*!
+ * about.css - https://heili.eu
+ * Licensed under the MIT license - http://opensource.org/licenses/MIT
+ * E-mail: lukas.heiligenbrunner@gmail.com
+ * Copyright (c) 2020 Lukas Heiligenbrunner
+ */
+
 #aboutmeText {
     width: 100%;
 }

css/contact.css

@@ -1,3 +1,10 @@
+/*!
+ * contact.css - https://heili.eu
+ * Licensed under the MIT license - http://opensource.org/licenses/MIT
+ * E-mail: lukas.heiligenbrunner@gmail.com
+ * Copyright (c) 2020 Lukas Heiligenbrunner
+ */
+
 .personalcontacts{
     margin-top: 60px;
 }

css/experience.css

@@ -56,6 +56,12 @@
     color: white;
     border-radius: 5mm;;
 }
+/*!
+ * experience.css - https://heili.eu
+ * Licensed under the MIT license - http://opensource.org/licenses/MIT
+ * E-mail: lukas.heiligenbrunner@gmail.com
+ * Copyright (c) 2020 Lukas Heiligenbrunner
+ */
 
 .ratiobtn {
     display: none;

css/general.css

@@ -1,3 +1,10 @@
+/*!
+ * general.css - https://heili.eu
+ * Licensed under the MIT license - http://opensource.org/licenses/MIT
+ * E-mail: lukas.heiligenbrunner@gmail.com
+ * Copyright (c) 2020 Lukas Heiligenbrunner
+ */
+
 body, html, #maincontent {
     height: 100%;
     scroll-behavior: smooth;

css/home.css

@@ -1,3 +1,10 @@
+/*!
+ * home.css - https://heili.eu
+ * Licensed under the MIT license - http://opensource.org/licenses/MIT
+ * E-mail: lukas.heiligenbrunner@gmail.com
+ * Copyright (c) 2020 Lukas Heiligenbrunner
+ */
+
 #section1 {
     background-color: #311E25;
     color: white;

css/projects.css

@@ -1,3 +1,10 @@
+/*!
+ * projects.css - https://heili.eu
+ * Licensed under the MIT license - http://opensource.org/licenses/MIT
+ * E-mail: lukas.heiligenbrunner@gmail.com
+ * Copyright (c) 2020 Lukas Heiligenbrunner
+ */
+
 #section4{
     background-color: #6c757d;
 }