<button class="cdt-btn cdt-btn-primary">Primary button</button>
<button class="cdt-btn cdt-btn-primary-1">Primary-1 button</button>
<button class="cdt-btn cdt-btn-secondary">Secondary button</button>
<button class="cdt-btn cdt-btn-error">Error button</button>
<button class="cdt-btn cdt-btn-gray">Gray button</button>
body {
  margin: 10px;
}