How to set width for Vaadin Label with empty string

问题

According to the documentation if you have an empty Label (a Label with an empty string) the width will collapse to 0. That being said the documentation also says: "If you want a gap that has adjustable width or height, you can use an empty label if you specify a height or width for it" However when I do this the width still collapses to 0. I need the width to keep it's size because I use a different color for the background.

回答1:

For me adding style to whatEverIsTheStyleName.scss that specifies width works fine:

.emptyLabel {
    width: 500px;
}

Then simply:

emptyLabel.addStyleName("emptyLabel");

Setting it in a code like emptyLabel.setWidth(500, Unit.PIXELS); seems not to work.

来源：https://stackoverflow.com/questions/46870163/how-to-set-width-for-vaadin-label-with-empty-string