JavaScript/jQuery Form - Customize a Validation Icon
To customize the validation icon, modify the dx-texteditor-input-container class. To shift the icon's position to the left, apply these CSS rules:
CSS
.dx-texteditor.dx-invalid .dx-texteditor-input-container::after {
left: 4px;
right: 0;
}
.dx-texteditor.dx-invalid .dx-texteditor-input {
padding-right: 0;
padding-left: 34px;
} Examine CSS if further customization is required.
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