video.uvue

<template>
  <view class="uni-flex-item">
    <video class="video" ref="video" id="video" :header="header" :src=src :autoplay="autoplay" :loop="loop"
      :muted="muted" :initial-time="initialTime" :duration="duration" :controls="controls" :danmu-btn="danmuBtn"
      :enable-danmu="enableDanmu" :page-gesture="pageGesture" :direction="direction" :show-progress="showProgress"
      :show-fullscreen-btn="showFullscreenBtn" :show-play-btn="showPlayBtn" :show-center-play-btn="showCenterPlayBtn"
      :show-loading="showLoading" :enable-progress-gesture="enableProgressGesture" :object-fit="objectFit"
      :poster="poster" :show-mute-btn="showMuteBtn" :title="title" :enable-play-gesture="enablePlayGesture"
      :vslide-gesture="vslideGesture" :vslide-gesture-in-fullscreen="vslideGestureInFullscreen" :codec="codec"
      :http-cache="httpCache" :play-strategy="playStrategy" :danmu-list="danmuList" @play="onPlay" @pause="onPause"
      @ended="onEnded" @timeupdate="onTimeUpdate" @waiting="onWaiting" @error="onError" @progress="onProgress"
      @fullscreenclick="onFullScreenClick" @controlstoggle="onControlsToggle" @fullscreenchange="onFullScreenChange">
      <!-- #ifdef APP-ANDROID -->
      <image v-if="subCompEnable && subCompShow" class="img-fast-backward"
        src="../../../static/test-video/fast-backward.png" @tap="fastBackward"></image>
      <image v-if="subCompEnable && subCompShow" class="img-fast-forward"
        src="../../../static/test-video/fast-forward.png" @tap="fastForward"></image>
      <input id="input-send-danmu" class="input-send-danmu" v-if="subCompEnable && subCompShow" placeholder="请输入弹幕内容"
        placeholder-style="color: white;" confirm-type="send" @confirm="onSendDanmuConfirm"
        @keyboardheightchange="onSendDanmuKeyboardHeightChange" @blur="onSendDanmuBlur"></input>
      <!-- #endif -->
    </video>
    <scroll-view class="uni-padding-wrap uni-common-mt uni-flex-item">
      <view class="uni-btn-v">
        <navigator url="/pages/component/video/video-format">
          <button type="primary" @click="pause">视频格式示例</button>
        </navigator>
      </view>
      <!-- #ifdef APP-ANDROID -->
      <view class="uni-flex uni-btn-v" style="justify-content: space-between;align-items: center;">
        <text class="uni-title" style="width: 80%;">子组件实现快进、快退、发送弹幕功能（全屏后显示）</text>
        <switch :checked="subCompEnable" @change="onSubCompEnableChange" />
      </view>
      <!-- #endif -->
      <view class="uni-title">
        <text class="uni-title-text">API示例</text>
      </View>
      <view class="uni-btn-v">
        <button type="primary" @click="play">播放</button>
      </view>
      <view class="uni-btn-v">
        <button type="primary" @click="pause">暂停</button>
      </view>
      <view class="uni-btn-v">
        <input class="input" placeholder="输入要跳转的位置,单位s" type="number" @input="onSeekInput"></input>
        <button type="primary" @click="seek(this.pos)">跳转到指定位置</button>
      </view>
      <view class="uni-btn-v">
        <enum-data title="选择进入全屏时的视频方向" :items="directionItemTypes"
          @change="onRequestFullScreenDirectionChange"></enum-data>
        <button type="primary" @click="requestFullScreen">进入全屏</button>
      </view>
      <view class="uni-btn-v">
        <button type="primary" @click="exitFullScreen">退出全屏</button>
      </view>
      <view class="uni-btn-v">
        <button type="primary" @click="stop">停止</button>
      </view>
      <view class="uni-btn-v">
        <input class="input" placeholder="输入弹幕" value="{ 'text': '要显示的文本', 'color': '#FF0000' }" type="string"
          @input="onSendDanmuInput"></input>
        <button type="primary" :disabled="!enableDanmu" @click="sendDanmu">发送弹幕</button>
      </view>
      <view class="uni-btn-v">
        <enum-data title="选择倍速" :items="rateItemTypes" @change="onPlaybackRateChange"></enum-data>
        <button type="primary" @click="playbackRate">设置倍速</button>
      </view>
      <view class="uni-title">
        <text class="uni-title-text">属性示例</text>
      </view>
      <input class="input margin-10" type="string" placeholder="设置播放资源" @confirm="onSrcComfirm"></input>
      <input class="input margin-10" type="number" placeholder="设置初始播放位置（播放前设置有效）"
        @confirm="onInitialTimeComfirm"></input>
      <input class="input margin-10" type="number" placeholder="设置视频时长（播放前设置有效）" @confirm="onDurationComfirm"></input>
      <input class="input margin-10" type="string" placeholder="设置视频封面" @confirm="onPosterComfirm"></input>
      <input class="input margin-10" type="string" placeholder="设置视频标题（仅限非 Web 平台）" @confirm="onTitleComfirm"></input>
      <input class="input margin-10" type="string" placeholder="设置header(json格式)" @confirm="onHeaderComfirm"></input>
      <boolean-data title="设置是否展示弹幕（播放前设置有效）" :defaultValue="enableDanmu" @change="onEnableDanmuChange"></boolean-data>
      <boolean-data title="设置是否自动播放（播放前设置有效）" :defaultValue="autoplay" @change="onAutoplayChange"></boolean-data>
      <boolean-data title="设置是否循环播放（播放完成后生效）" :defaultValue="loop" @change="onLoopChange"></boolean-data>
      <boolean-data title="设置是否静音播放" :defaultValue="muted" @change="onMutedChange"></boolean-data>
      <boolean-data title="设置是否显示默认播放控件" :defaultValue="controls" @change="onControlsChange"></boolean-data>
      <boolean-data title="设置是否显示弹幕按钮" :defaultValue="danmuBtn" @change="onDanmuBtnChange"></boolean-data>
      <boolean-data title="设置是否显示进度条" :defaultValue="showProgress" @change="onShowProgressChange"></boolean-data>
      <boolean-data title="设置是否显示全屏按钮" :defaultValue="showFullscreenBtn"
        @change="onShowFullscreenBtnChange"></boolean-data>
      <boolean-data title="设置是否显示视频底部控制栏的播放按钮" :defaultValue="showPlayBtn" @change="onShowPlayBtnChange"></boolean-data>
      <boolean-data title="设置是否显示静音按钮（仅限非 Web 平台）" :defaultValue="showMuteBtn"
        @change="onShowMuteBtnChange"></boolean-data>
      <enum-data title="设置全屏时视频的方向" :items="directionItemTypes" @change="onDirectionChange"></enum-data>
      <boolean-data title="设置是否显示视频中间的播放按钮" :defaultValue="showCenterPlayBtn"
        @change="onShowCenterPlayBtnChange"></boolean-data>
      <boolean-data title="设置是否显示loading控件" :defaultValue="showLoading" @change="onShowLoadingChange"></boolean-data>
      <boolean-data title="设置是否开启控制进度的手势" :defaultValue="enableProgressGesture"
        @change="onEnableProgressGestureChange"></boolean-data>
      <boolean-data title="设置是否开启播放手势（仅限非 Web 平台）" :defaultValue="enablePlayGesture"
        @change="onEnablePlayGestureChange"></boolean-data>
      <!-- #ifndef WEB -->
      <boolean-data title="非全屏模式下，设置是否开启亮度与音量调节手势" :defaultValue="pageGesture"
        @change="onPageGestureChange"></boolean-data>
      <!-- #endif -->
      <boolean-data title="非全屏模式下，设置是否开启亮度与音量调节手势（仅限非 Web 平台）" :defaultValue="vslideGesture"
        @change="onVslideGestureChange"></boolean-data>
      <boolean-data title="全屏模式下，设置是否开启亮度与音量调节手势（仅限非 Web 平台）" :defaultValue="vslideGestureInFullscreen"
        @change="onVslideGestureInFullscreenChange"></boolean-data>
      <boolean-data title="设置是否对http、https视频源开启本地缓存（仅 App 平台，播放前设置有效）" :defaultValue="httpCache"
        @change="onHttpCacheChange"></boolean-data>
      <enum-data title="设置视频大小与video容器大小不一致时，视频的表现形式" :items="objectFitItemTypes"
        @change="onObjectFitChange"></enum-data>
      <enum-data title="设置解码器（仅 App 平台，播放前设置有效）" :items="codecItemTypes" @change="onCodecChange"></enum-data>
      <enum-data title="设置播放策略（仅 App 平台，播放前设置有效）" :items="playStrategyItemTypes"
        @change="onPlayStrategyChange"></enum-data>
    </scroll-view>
  </view>
</template>

<script>
  import { ItemType } from '@/components/enum-data/enum-data-types';
  // #ifdef APP-ANDROID
  import ViewGroup from 'android.view.ViewGroup';
  // #endif
  export default {
    onReady() {
      this.videoContext = uni.createVideoContext('video');
      // this.videoContext = uni.createVideoContext('video', this);
    },
    data() {
      return {
        videoContext: null as VideoContext | null,
        // 属性
        src: "https://qiniu-web-assets.dcloud.net.cn/video/sample/2minute-demo.mp4",
        autoplay: false,
        loop: false,
        muted: false,
        initialTime: 0,
        duration: 0,
        controls: true,
        danmuList: [{
          text: '要显示的文本',
          color: '#FF0000',
          time: 3
        }, {
          text: '要显示的文本2',
          color: '#31ff23',
          time: 5
        }, {
          text: '要显示的文本3',
          color: '#f13ef8',
          time: 7
        }, {
          text: '要显示的文本4',
          color: '#4972f8',
          time: 9
        }, {
          text: '要显示的文本5',
          color: '#000000',
          time: 11
        }] as Array<Danmu>,
        danmuBtn: false,
        enableDanmu: true,
        pageGesture: false,
        direction: -1,
        directionItemTypes: [{ "value": 0, "name": "0(正常竖向)" }, { "value": 1, "name": "90(屏幕逆时针90度)" }, { "value": 2, "name": "-90(屏幕顺时针90度)" }] as ItemType[],
        directionItems: [0, 90, -90],
        showProgress: true,
        showFullscreenBtn: true,
        showPlayBtn: true,
        showCenterPlayBtn: true,
        showLoading: true,
        enableProgressGesture: true,
        objectFit: "contain",
        objectFitItemTypes: [{ "value": 0, "name": "contain(包含)" }, { "value": 1, "name": "fill(填充)" }, { "value": 2, "name": "cover(覆盖)" }] as ItemType[],
        objectFitItems: ["contain", "fill", "cover"],
        poster: "https://qiniu-web-assets.dcloud.net.cn/unidoc/zh/uni-android.png",
        showMuteBtn: false,
        title: "video-component",
        enablePlayGesture: false,
        vslideGesture: false,
        vslideGestureInFullscreen: true,
        codec: "hardware",
        codecItemTypes: [{ "value": 0, "name": "hardware(硬解码)" }, { "value": 1, "name": "software(软解码)" }] as ItemType[],
        codecItems: ["hardware", "software"],
        httpCache: true,
        playStrategy: 0,
        playStrategyItemTypes: [{ "value": 0, "name": "0(普通模式)" }, { "value": 1, "name": "1(平滑播放模式)" }, { "value": 1, "name": "2(M3U8优化模式)" }] as ItemType[],
        playStrategyItems: [0, 1, 2],
        header: {
          'User-Agent': 'User-Agent test',
          'header': 'header test',
          'cookie': 'cookie test'
        } as UTSJSONObject,
        // API
        pos: 0,
        requestFullScreenOptions: null as RequestFullScreenOptions | null,
        danmu: {
          text: '要显示的文本',
          color: '#FF0000'
        } as Danmu,
        rate: 1,
        rateItemTypes: [{ "value": 0, "name": "0.5" }, { "value": 1, "name": "0.8" }, { "value": 2, "name": "1.0" }, { "value": 3, "name": "1.25" }, { "value": 4, "name": "1.5" }] as ItemType[],
        rateItems: [0.5, 0.8, 1.0, 1.25, 1.5],
        subCompEnable: false,
        subCompShow: false,
        curPos: 0,
        endPos: 0,
        // 自动化测试
        autoTest: false,
        isPlaying: false,
        isPause: false,
        isError: false,
        eventPlay: null as UTSJSONObject | null,
        eventPause: null as UTSJSONObject | null,
        eventEnded: null as UTSJSONObject | null,
        eventTimeupdate: null as UTSJSONObject | null,
        eventFullscreenchange: null as UTSJSONObject | null,
        eventWaiting: null as UTSJSONObject | null,
        eventError: null as UTSJSONObject | null,
        eventProgress: null as UTSJSONObject | null,
        eventFullscreenclick: null as UTSJSONObject | null,
        eventControlstoggle: null as UTSJSONObject | null
      }
    },
    onLoad() {
    },
    methods: {
      // API
      play: function () {
        console.log("play");
        this.videoContext?.play();
      },
      pause: function () {
        console.log("pause");
        (uni.getElementById("video") as UniVideoElement).pause(); //as写法测试。注意id不对时as会崩溃
        // this.videoContext?.pause();
      },
      seek: function (pos : number) {
        console.log("seek -> " + pos);
        this.videoContext?.seek(pos);
      },
      onSeekInput: function (event : UniInputEvent) {
        this.pos = parseInt(event.detail.value);
      },
      requestFullScreen: function () {
        console.log("requestFullScreen -> " + this.requestFullScreenOptions);
        this.videoContext?.requestFullScreen(this.requestFullScreenOptions);
      },
      exitFullScreen: function () {
        console.log("exitFullScreen");
        this.videoContext?.exitFullScreen();
      },
      stop: function () {
        console.log("stop");
        uni.getElementById<UniVideoElement>("video")?.stop(); //泛型写法测试
        // this.videoContext?.stop();
      },
      sendDanmu: function () {
        console.log("sendDanmu -> " + this.danmu);
        this.videoContext?.sendDanmu(this.danmu);
      },
      onSendDanmuInput: function (event : UniInputEvent) {
        let json = JSON.parse<Danmu>(event.detail.value)
        if (json == null) return;
        this.danmu = json as Danmu;
      },
      playbackRate: function () {
        console.log("playbackRate -> " + this.rate);
        this.videoContext?.playbackRate(this.rate);
      },
      onPlaybackRateChange: function (value : number) {
        this.rate = this.rateItems[value];
      },
      fastBackward: function () {
        let pos = this.curPos - 15;
        if (pos < 0) pos = 0;
        this.seek(pos);
      },
      fastForward: function () {
        let pos = this.curPos + 15;
        if (pos > this.endPos) pos = this.endPos;
        this.seek(pos);
      },
      onSendDanmuConfirm: function (event : UniInputConfirmEvent) {
        this.videoContext?.sendDanmu({
          text: event.detail.value,
          color: '#ff0000'
        } as Danmu);
      },
      onSendDanmuKeyboardHeightChange: function (event : UniInputKeyboardHeightChangeEvent) {
        const element = uni.getElementById('input-send-danmu') as UniElement;
        if (event.detail.height.toInt() == 0) {
          element.style.setProperty('bottom', '50px');
        } else {
          element.style.setProperty('bottom', event.detail.height + element.getBoundingClientRect().height);
        }
      },
      onSendDanmuBlur: function (_ : UniInputBlurEvent) {
        (uni.getElementById('input-send-danmu') as UniElement).style.setProperty('bottom', '50px');
      },
      // 属性
      onSrcComfirm: function (event : UniInputConfirmEvent) {
        let value = event.detail.value;
        if (value == '') return;
        this.src = value;
        console.log("src -> " + this.src)
      },
      onAutoplayChange: function (value : boolean) {
        this.autoplay = value;
        console.log("autoplay -> " + this.autoplay)
      },
      onLoopChange: function (value : boolean) {
        this.loop = value;
        console.log("loop -> " + this.loop)
      },
      onMutedChange: function (value : boolean) {
        this.muted = value;
        console.log("muted -> " + this.muted)
      },
      onInitialTimeComfirm: function (event : UniInputConfirmEvent) {
        let value = parseInt(event.detail.value)
        if (isNaN(value)) value = 0;
        this.initialTime = value;
        console.log("initialTime -> " + this.initialTime)
      },
      onDurationComfirm: function (event : UniInputConfirmEvent) {
        let value = parseInt(event.detail.value)
        if (isNaN(value)) value = 0;
        this.duration = value;
        console.log("duration -> " + this.duration)
      },
      onControlsChange: function (value : boolean) {
        this.controls = value;
        console.log("controls -> " + this.controls)
      },
      onEnableDanmuChange: function (value : boolean) {
        this.enableDanmu = value;
        console.log("enableDanmu -> " + this.enableDanmu)
      },
      onDanmuBtnChange: function (value : boolean) {
        this.danmuBtn = value;
        console.log("danmuBtn -> " + this.danmuBtn)
      },
      onPageGestureChange: function (value : boolean) {
        this.pageGesture = value;
        console.log("pageGesture -> " + this.pageGesture)
      },
      onRequestFullScreenDirectionChange: function (value : number) {
        let direction = this.directionItems[value];
        this.requestFullScreenOptions = {
          direction
        } as RequestFullScreenOptions;
      },
      onDirectionChange: function (value : number) {
        this.direction = this.directionItems[value];
        console.log("direction -> " + this.direction)
      },
      onShowProgressChange: function (value : boolean) {
        this.showProgress = value;
        console.log("showProgress -> " + this.showProgress)
      },
      onShowFullscreenBtnChange: function (value : boolean) {
        this.showFullscreenBtn = value;
        console.log("showFullscreenBtn -> " + this.showFullscreenBtn)
      },
      onShowPlayBtnChange: function (value : boolean) {
        this.showPlayBtn = value;
        console.log("showPlayBtn -> " + this.showPlayBtn)
      },
      onShowCenterPlayBtnChange: function (value : boolean) {
        this.showCenterPlayBtn = value;
        console.log("showCenterPlayBtn -> " + this.showCenterPlayBtn)
      },
      onShowLoadingChange: function (value : boolean) {
        this.showLoading = value;
        console.log("showLoading -> " + this.showLoading)
      },
      onEnableProgressGestureChange: function (value : boolean) {
        this.enableProgressGesture = value;
        console.log("enableProgressGesture -> " + this.enableProgressGesture)
      },
      onObjectFitChange: function (value : number) {
        this.objectFit = this.objectFitItems[value];
        console.log("objectFit -> " + this.objectFit)
      },
      onPosterComfirm: function (event : UniInputConfirmEvent) {
        let value = event.detail.value;
        if (value == '') return;
        this.poster = value;
        console.log("poster -> " + this.poster)
      },
      onShowMuteBtnChange: function (value : boolean) {
        this.showMuteBtn = value;
        console.log("showMuteBtn -> " + this.showMuteBtn)
      },
      onTitleComfirm: function (event : UniInputConfirmEvent) {
        let value = event.detail.value;
        if (value == '') return;
        this.title = value;
        console.log("title -> " + this.title)
      },
      onEnablePlayGestureChange: function (value : boolean) {
        this.enablePlayGesture = value;
        console.log("enablePlayGesture -> " + this.enablePlayGesture)
      },
      onVslideGestureChange: function (value : boolean) {
        this.vslideGesture = value;
        console.log("vslideGesture -> " + this.vslideGesture)
      },
      onVslideGestureInFullscreenChange: function (value : boolean) {
        this.vslideGestureInFullscreen = value;
        console.log("vslideGestureInFullscreen -> " + this.vslideGestureInFullscreen)
      },
      onCodecChange: function (value : number) {
        this.codec = this.codecItems[value];
        console.log("codec -> " + this.codec)
      },
      onHttpCacheChange: function (value : boolean) {
        this.httpCache = value;
        console.log("httpCache -> " + this.httpCache)
      },
      onPlayStrategyChange: function (value : number) {
        this.playStrategy = this.playStrategyItems[value];
        console.log("playStrategy -> " + this.playStrategy)
      },
      onHeaderComfirm: function (event : UniInputConfirmEvent) {
        let json = JSON.parse(event.detail.value)
        if (json == null) return;
        this.header = json as UTSJSONObject;
        console.log("header -> " + JSON.stringify(this.header))
      },
      onSubCompEnableChange: function (event : UniSwitchChangeEvent) {
        this.subCompEnable = event.detail.value;
      },
      // 事件
      onPlay: function (res : UniEvent) {
        console.log(res.type);
        this.isPlaying = true;
        this.isPause = false;
        if (this.autoTest) {
          this.eventPlay = {
            "tagName": res.target?.tagName,
            "type": res.type
          };
        }
      },
      onPause: function (res : UniEvent) {
        console.log(res.type);
        this.isPlaying = false;
        this.isPause = true;
        if (this.autoTest) {
          this.eventPause = {
            "tagName": res.target?.tagName,
            "type": res.type
          };
        }
      },
      onEnded: function (res : UniEvent) {
        console.log(res.type);
        if (this.autoTest) {
          this.eventEnded = {
            "tagName": res.target?.tagName,
            "type": res.type
          };
        }
      },
      onTimeUpdate: function (res : UniVideoTimeUpdateEvent) {
        console.log(res.type + " -> " + JSON.stringify(res.detail));
        this.curPos = res.detail.currentTime;
        this.endPos = res.detail.duration;
        if (this.autoTest) {
          this.eventTimeupdate = {
            "tagName": res.target?.tagName,
            "type": res.type,
            "currentTime": Math.trunc(res.detail.currentTime),
            "duration": Math.trunc(res.detail.duration)
          };
        }
      },
      onFullScreenChange: function (res : UniVideoFullScreenChangeEvent) {
        console.log(res.type + " -> " + JSON.stringify(res.detail));
        this.subCompShow = res.detail.fullScreen;
        if (this.autoTest) {
          this.eventFullscreenchange = {
            "tagName": res.target?.tagName,
            "type": res.type,
            "fullScreen": res.detail.fullScreen,
            "direction": res.detail.direction
          };
        }
      },
      onWaiting: function (res : UniEvent) {
        console.log(res.type);
        if (this.autoTest) {
          this.eventWaiting = {
            "tagName": res.target?.tagName,
            "type": res.type
          };
        }
      },
      onError: function (res : UniVideoErrorEvent) {
        console.log(res.type + " -> " + JSON.stringify(res.detail));
        this.isError = true;
        if (this.autoTest) {
          this.eventError = {
            "tagName": res.target?.tagName,
            "type": res.type,
            "errCode": res.detail.errCode
          };
        }
      },
      onProgress: function (res : UniVideoProgressEvent) {
        console.log(res.type + " -> " + JSON.stringify(res.detail));
        if (this.autoTest) {
          this.eventProgress = {
            "tagName": res.target?.tagName,
            "type": res.type,
            "isBufferedValid": res.detail.buffered >= 0
          };
        }
      },
      onFullScreenClick: function (res : UniVideoFullScreenClickEvent) {
        console.log(res.type + " -> " + JSON.stringify(res.detail));
        if (this.autoTest) {
          this.eventFullscreenclick = {
            "tagName": res.target?.tagName,
            "type": res.type,
            "screenX": Math.trunc(res.detail.screenX),
            "screenY": Math.trunc(res.detail.screenY),
            "screenWidth": Math.trunc(res.detail.screenWidth),
            "screenHeight": Math.trunc(res.detail.screenHeight)
          };
        }
      },
      onControlsToggle: function (res : UniVideoControlsToggleEvent) {
        console.log(res.type + " -> " + JSON.stringify(res.detail));
        if (this.autoTest) {
          this.eventControlstoggle = {
            "tagName": res.target?.tagName,
            "type": res.type,
            "show": res.detail.show
          };
        }
      },
      // 自动化测试
      downloadSource() {
        uni.downloadFile({
          url: 'https://qiniu-web-assets.dcloud.net.cn/video/sample/2minute-demo.mp4',
          success: (res) => {
            this.src = res.tempFilePath;
          },
          fail: (_) => {
            this.isError = true;
          }
        })
      },
      // #ifdef APP-ANDROID
      hasSubComponent() : boolean {
        const view = uni.getElementById('video')?.getAndroidView<ViewGroup>();
        return view == null ? false : view.getChildAt(0) instanceof ViewGroup;
      }
      // #endif
    }
  }
</script>

<style>
  .video {
    width: 100%;
    height: 200px;
  }

  .input {
    height: 40px;
    background: #FFF;
    padding: 8px 13px;
  }

  .margin-10 {
    margin: 10px;
  }

  .img-fast-backward {
    width: 40px;
    height: 40px;
    top: 50%;
    left: 12%;
    transform: translate(-50%, -50%);
    position: absolute;
  }

  .img-fast-forward {
    width: 40px;
    height: 40px;
    top: 50%;
    right: 12%;
    transform: translate(50%, -50%);
    position: absolute;
  }

  .input-send-danmu {
    height: 40px;
    padding: 8px 13px;
    margin: 0 var(--status-bar-height);
    bottom: 50px;
    position: absolute;
    background-color: rgba(0, 0, 0, 0.5);
    color: #FFF;
  }
</style>