vaadin-framework/themes/src/main/themes/VAADIN/themes/liferay/textfield/textfield.scss

@mixin liferay-textfield {

&.v-app input[type="text"],
&.v-app input[type="password"],
&.v-app input[type="reset"],
&.v-app textarea ,
.v-window input[type="text"],
.v-window input[type="password"],
.v-window input[type="reset"],
.v-window textarea {
	padding: 5px 1px;
}

input.v-textfield-prompt, 
textarea.v-textarea-prompt {
	font-style: normal;	
}

}