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diff --git a/public/img/korap-logo-solo.png b/public/img/korap-logo-solo.png
new file mode 100644
index 0000000..183bda3
--- /dev/null
+++ b/public/img/korap-logo-solo.png
Binary files differ
diff --git a/public/sass/style.scss b/public/sass/style.scss
index 40d4ab2..4bb7116 100644
--- a/public/sass/style.scss
+++ b/public/sass/style.scss
@@ -29,6 +29,7 @@
   text-decoration: none;
 }
 
+/*
 #crab-bg {
   top: 0;
   background: {
@@ -42,6 +43,7 @@
   width: 175%;
   z-index: -5000
 }
+*/
 
 #top {
   background-color: #7ba400;
diff --git a/public/sass/tutorial.scss b/public/sass/tutorial.scss
index 5985821..15928a4 100644
--- a/public/sass/tutorial.scss
+++ b/public/sass/tutorial.scss
@@ -38,6 +38,7 @@
       width: 0;
       radius: 10px;
     }
+/*
     background: {
       image: url('/img/crab.svg');
       size: 10%;
@@ -45,6 +46,7 @@
       position: center center;
       color: white;
     }
+*/
   }
 }