edlp_d8/core/modules/layout_builder/css/layout-builder.css

.add-section {
  width: 100%;
  outline: 2px dashed #979797;
  padding: 1.5em 0;
  text-align: center;
  margin-bottom: 1.5em;
  transition: visually-hidden 2s ease-out, height 2s ease-in;
}

.layout-section {
  margin-bottom: 1.5em;
}

.layout-section .layout-builder--layout__region {
  outline: 2px dashed #2f91da;
  padding: 1.5em 0;
}

.layout-section .layout-builder--layout__region .add-block {
  text-align: center;
}

.layout-section .remove-section {
  position: relative;
  background: url(../../../misc/icons/bebebe/ex.svg) #fff center center / 16px 16px no-repeat;
  border: 1px solid #ccc;
  box-sizing: border-box;
  font-size: 1rem;
  padding: 0;
  height: 26px;
  width: 26px;
  white-space: nowrap;
  text-indent: -9999px;
  display: inline-block;
  border-radius: 26px;
  margin-left: -10px;
}

.layout-section .remove-section:hover {
  background-image: url(../../../misc/icons/787878/ex.svg);
}

#drupal-off-canvas .layout-selection li {
  display: block;
  padding-bottom: 1em;
}

#drupal-off-canvas .layout-selection li a {
  display: block;
  padding-top: 0.55em;
}