Vaadin 7/8 popupdatefield

If it’s possible only icon show and access remove or hide textfield

My first thought was something like

.v-datefield-textfield {
  display: none;

in CSS.

sir i use popup datefield width 40px. display only icon. i select icon pick one date show textfield. the above css use pick date not work sir

What Olli proposed worked for me. Additionally I would do something like

.v-datefield-button {
    background: white;
    border-right: unset;
    border-radius: 3px;
    border: 1px solid #c5c5c5;

Note, in your case colors can be different if you have custom theme instead of Valo defaults or even Reindeer based theme.