/**
 *    Copyright 2015-2018 ppy Pty. Ltd.
 *
 *    This file is part of osu!web. osu!web is distributed with the hope of
 *    attracting more community contributions to the core ecosystem of osu!.
 *
 *    osu!web is free software: you can redistribute it and/or modify
 *    it under the terms of the Affero GNU General Public License version 3
 *    as published by the Free Software Foundation.
 *
 *    osu!web is distributed WITHOUT ANY WARRANTY; without even the implied
 *    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *    See the GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with osu!web.  If not, see <http://www.gnu.org/licenses/>.
 */

.pswp {
  z-index: 9000;

  &__ui {
    position: static;
  }

  &__bg {
    background: rgba(0, 0, 0, 0.8);
  }

  &__button {
    &--contest-vote {
      color: #fff;

      && {
        background: none;
      }
    }

    &--contest-vote-active {
      opacity: 0.9;
      color: @yellow;
    }
  }
}

/**
 *    Copyright 2015-2018 ppy Pty. Ltd.
 *
 *    This file is part of osu!web. osu!web is distributed with the hope of
 *    attracting more community contributions to the core ecosystem of osu!.
 *
 *    osu!web is free software: you can redistribute it and/or modify
 *    it under the terms of the Affero GNU General Public License version 3
 *    as published by the Free Software Foundation.
 *
 *    osu!web is distributed WITHOUT ANY WARRANTY; without even the implied
 *    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *    See the GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with osu!web.  If not, see <http://www.gnu.org/licenses/>.
 */

.pswp {
  z-index: 9000;

  &__ui {
    position: static;
  }

  &__bg {
    background: rgba(0, 0, 0, 0.8);
  }

  &__button {
    &--contest-vote {
      color: #fff;

      // Overrides original sytle.
      // The third one is needed to override retina version.
      &&& {
        background-image: none;
      }
    }

    &--contest-vote-active {
      opacity: 0.9;
      color: @yellow;
    }
  }
}

Fix retina version of the button
Fix retina version of the button
