move some css files to global folder

src/css/flexstyles.css

@@ -0,0 +1,47 @@
+.flex {
+    display: flex;
+}
+
+.inline-flex {
+    display: inline-flex;
+}
+
+.flex-direction-column {
+    flex-direction: column;
+}
+
+.flex-direction-row {
+    flex-direction: row;
+}
+
+.flex-grow {
+    flex-grow: 1;
+}
+
+.flex-shrink-zero {
+    flex-shrink: 0;
+}
+
+.align-items-center {
+    align-items: center;
+}
+
+.align-items-flex-start {
+    align-items: flex-start;
+}
+
+.justify-content-center {
+    justify-content: center;
+}
+
+.justify-content-flex-end {
+    justify-content: flex-end;
+}
+
+.flex-wrap-wrap {
+    flex-wrap: wrap;
+}
+
+.align-self-flex-end {
+    align-self: flex-end;
+}