html 来自https://codepen.io/pen/

Posted 2021-05-11

<div class="mdl-layout-spacer"></div>
          <div class="mdl-textfield mdl-js-textfield mdl-textfield--expandable
                      mdl-textfield--floating-label mdl-textfield--align-right">
            <label class="mdl-button mdl-js-button mdl-button--icon"
                   for="fixed-header-drawer-exp">
              <i class="material-icons">search</i>
            </label>
            <div class="mdl-textfield__expandable-holder">
              <input class="mdl-textfield__input" type="text" name="sample"
                     id="fixed-header-drawer-exp">
            </div>
          </div>