definicao de layout

public/assets/scss/datatable-extension/_button.bootstrap4.scss

@@ -0,0 +1,54 @@
+/*button bootstrap4 css*/
+@import 'mixins.scss';
+@import 'common.scss';
+
+ul.dt-button-collection.dropdown-menu {
+  display: block;
+  z-index: 2002;
+
+  @include dtb-fixed-collection();
+}
+
+ul.dt-button-collection {
+  @include dtb-fixed-collection();
+
+  &.fixed {
+    max-width: none;
+
+    &:before,
+    &:after {
+      display: none;
+    }
+  }
+}
+
+div.dt-button-background {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  z-index: 999;
+}
+
+@media screen and (max-width: 767px) {
+  div.dt-buttons {
+    float: none;
+    width: 100%;
+    text-align: center;
+    margin-bottom: 0.5em;
+
+    a.btn {
+      float: none;
+    }
+  }
+}
+
+div.dt-buttons {
+  button.btn.processing,
+  div.btn.processing,
+  a.btn.processing {
+    @include dtb-processing();
+  }
+}
+/*button bootstrap4 css*/