feat: animation landing page + style button + uniform ul header and footer

assets/sass/landing.scss

@@ -3,6 +3,7 @@
     position: relative;
     min-height: 40rem;
 }
+
 .cover__back {
     position: absolute;
     height: 100%;
@@ -39,8 +40,18 @@
     background-color: rgba(14, 14, 14, 0.2);
 }
 
+@keyframes cover_title_in {
+    0% {
+        left: -10rem;
+    }
+    100% {
+        left: 0;
+    }
+}
+
 .cover__title-container {
-    // position: relative;
+    position: relative;
+    animation: cover_title_in 0.5s cubic-bezier(.39,.58,.57,1);
 }
 
 .cover__title {
@@ -68,3 +79,10 @@
     height: 0;
     border-bottom: .3rem solid $accent;
 }
+
+@media (min-width: $lg-breakpoint) {
+    .cover__back {
+        background-position-x: center;
+        background-position-y: -1.5rem;
+    }
+}