With <tc:label/>, a single label can be created. Some components already have a label attribute to combine it with a label, which should be used in general.
<tc:label/>
label
A label can be linked to a component using the for attribute.
for
With <tc:flexLayout columns="250px 1fr 200px"> a label is set in front and after an input field. The label attribute is not used for <tc:in/>.
<tc:flexLayout columns="250px 1fr 200px">
<tc:in/>
Some components like <tc:progress/> do not have a label attribute. In this example, a label is combined with a progressbar using <tc:flowLayout/>.
<tc:progress/>
<tc:flowLayout/>