Fix delete element

sass/elements/notification.sass

@@ -1,15 +1,13 @@
 .notification
   +block
-  +clearfix
   background-color: $background
   border-radius: $radius
-  padding: 1.25rem 1.5rem
+  padding: 1.25rem 2.5rem 1.25rem 1.5rem
   position: relative
   .delete
-    border-radius: 0 $radius
     position: absolute
-    right: 0
-    top: 0
+    right: 0.5em
+    top: 0.5em
   .title,
   .subtitle,
   .content

sass/utilities/mixins.sass

@@ -31,7 +31,7 @@
   +unselectable
   -moz-appearance: none
   -webkit-appearance: none
-  background-color: rgba($black, 0.1)
+  background-color: rgba($black, 0.2)
   border: none
   border-radius: 290486px
   cursor: pointer
@@ -59,8 +59,11 @@
   &:after
     height: 50%
     width: 2px
-  &:hover
-    background-color: rgba($black, 0.2)
+  &:hover,
+  &:focus
+    background-color: rgba($black, 0.3)
+  &:active
+    background-color: rgba($black, 0.4)
   // Sizes
   &.is-small
     font-size: $size-small