remove abbreviations, move some into snippets

UltiSnips/css.snippets

@@ -1,4 +1,23 @@
-snippet sld "/* stylelint-disable-next-line ... */"
+snippet abs "pabs position: absolute;"
+position: absolute;
+endsnippet
+snippet fix "position: fixed;"
+position: fixed;
+endsnippet
+snippet rel "position: relative;"
+position: relative;
+endsnippet
+snippet row "flex-direction: row;"
+flex-direction: row;
+endsnippet
+snippet col "flex-direction: column;"
+flex-direction: column;
+endsnippet
+snippet over "overflow: hidden;"
+overflow: $0;
+endsnippet
+
+snippet style "/* stylelint-disable-next-line ... */"
 /* stylelint-disable-next-line ${1:declaration-block-no-shorthand-property-overrides} */
 endsnippet
 
@@ -29,7 +48,7 @@ linear-gradient(
 endsnippet
 
 snippet bglg "background: linear-gradient ..."
-background: linear-gradient(
+background-image: linear-gradient(
 							${2:to bottom},
 							${3:transparent},
 							${4:transparent}