CSS3动画宽度

Question

我使用CSS3动画扩大吧，但问题是，PRECENTAGE需要插入关键帧@代码。在HTML中，自定义宽度作为内联CSS插入。

有没有一种方法来动画内嵌的CSS宽度的数量，而不是@keyframe中插入什么？

#dataanalysis td figure { 
 
    animation: aw 2s normal; 
 
} 
 

 
@keyframes aw { 
 
    0% { 
 
    width: 0%; 
 
    } 
 
    100% { 
 
    width: 100%; 
 
    } 
 
} 
 
#dataanalysis { 
 
    width: 100%; 
 
    margin-top: 3rem; 
 
    background: #26272b; 
 
    color: white; 
 
    border-collapse: collapse; 
 
    font-size: .7rem; 
 
    font-weight: 300; 
 
    -webkit-font-smoothing: antialiased; 
 
} 
 
#dataanalysis td { 
 
    border: solid 1px black; 
 
    padding: .5rem; 
 
    word-wrap: break-word; 
 
    height: 25px; 
 
} 
 
#dataanalysis td:first-child { 
 
    width: 140px; 
 
    padding-left: .5rem; 
 
} 
 
#dataanalysis td:nth-child(2n) { 
 
    border-right: none; 
 
} 
 
#dataanalysis td:last-child { 
 
    text-align: right; 
 
    width: 25px; 
 
    border-left: none; 
 
} 
 
#dataanalysis td figure { 
 
    background: linear-gradient(to right, #f24f37 0%, #cd2134 100%); 
 
    height: .8rem; 
 
    margin: 0 0 0 .5rem; 
 
    border-radius: 0.3rem; 
 
    border: 1px solid black; 
 
} 
 
#dataanalysis td img { 
 
    width: .8rem; 
 
    padding-left: .8rem; 
 
}

<table id="dataanalysis"> 
 
      <tbody> 
 
       <tr> 
 
       <td>Acousticness 
 
        <a href="#" data-tooltip="A confidence measure from 0.0 to 1.0 of whether the track is acoustic. 1.0 represents high confidence the track is acoustic."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:87%"></figure></td><td>87%</td> 
 
       </tr> 
 
       <tr> 
 
       <td>Danceability 
 
        <a href="#" data-tooltip="Danceability describes how suitable a track is for dancing based on a combination of musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of 0.0 is least danceable and 1.0 is most danceable."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:15%"></figure></td><td>15%</td> 
 
       </tr> 
 
       <tr> 
 
       <td>Energy 
 
        <a href="#" data-tooltip="Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and activity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy, while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute include dynamic range, perceived loudness, timbre, onset rate, and general entropy."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:49%"></figure></td><td>49%</td> 
 
       </tr> 
 
       <tr> 
 
       <td>Instrumentalness 
 
        <a href="#" data-tooltip="Predicts whether a track contains no vocals. "Ooh" and "aah" sounds are treated as instrumental in this context. Rap or spoken word tracks are clearly "vocal". The closer the instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content. Values above 0.5 are intended to represent instrumental tracks, but confidence is higher as the value approaches 1.0."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:32%"></figure></td><td>32%</td> 
 
       </tr> 
 
       <tr> 
 
       <td>Liveness 
 
        <a href="#" data-tooltip="Detects the presence of an audience in the recording. Higher liveness values represent an increased probability that the track was performed live. A value above 0.8 provides strong likelihood that the track is live."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:65%"></figure></td><td>65%</td> 
 
       </tr> 
 
       <tr> 
 
       <td>speechiness 
 
        <a href="#" data-tooltip="Speechiness detects the presence of spoken words in a track. The more exclusively speech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value. Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33 and 0.66 describe tracks that may contain both music and speech, either in sections or layered, including such cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:11%"></figure></td><td>11%</td> 
 
       </tr> 
 
       <tr> 
 
       <td>Valence/Happiness 
 
        <a href="#" data-tooltip="A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track. Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with low valence sound more negative (e.g. sad, depressed, angry)."><img src="/assets/img/info.svg" alt="tip"></a> 
 
       </td> 
 
       <td><figure style="width:91%"></figure></td><td>91%</td> 
 
      </tbody> 
 
      </table>

Answer 1

只需从@keyframes除去动画的100%部，动画的最后阶段似乎是从在直列style属性width集导出：

#dataanalysis td figure { 
 
    animation: aw 2s normal; 
 
} 
 
@keyframes aw { 
 
    0% { 
 
    width: 0%; 
 
    } 
 
} 
 
#dataanalysis { 
 
    width: 100%; 
 
    margin-top: 3rem; 
 
    background: #26272b; 
 
    color: white; 
 
    border-collapse: collapse; 
 
    font-size: .7rem; 
 
    font-weight: 300; 
 
    -webkit-font-smoothing: antialiased; 
 
} 
 
#dataanalysis td { 
 
    border: solid 1px black; 
 
    padding: .5rem; 
 
    word-wrap: break-word; 
 
    height: 25px; 
 
} 
 
#dataanalysis td:first-child { 
 
    width: 140px; 
 
    padding-left: .5rem; 
 
} 
 
/* Following rule simply to hide the broken images, 
 
    irrelevant to the answer/requirement */ 
 

 
#dataanalysis td a img { 
 
    display: none; 
 
} 
 
#dataanalysis td:nth-child(2n) { 
 
    border-right: none; 
 
} 
 
#dataanalysis td:last-child { 
 
    text-align: right; 
 
    width: 25px; 
 
    border-left: none; 
 
} 
 
#dataanalysis td figure { 
 
    background: linear-gradient(to right, #f24f37 0%, #cd2134 100%); 
 
    height: .8rem; 
 
    margin: 0 0 0 .5rem; 
 
    border-radius: 0.3rem; 
 
    border: 1px solid black; 
 
} 
 
#dataanalysis td img { 
 
    width: .8rem; 
 
    padding-left: .8rem; 
 
}

<table id="dataanalysis"> 
 
    <tbody> 
 
    <tr> 
 
     <td>Acousticness 
 
     <a href="#" data-tooltip="A confidence measure from 0.0 to 1.0 of whether the track is acoustic. 1.0 represents high confidence the track is acoustic."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:87%"></figure> 
 
     </td> 
 
     <td>87%</td> 
 
    </tr> 
 
    <tr> 
 
     <td>Danceability 
 
     <a href="#" data-tooltip="Danceability describes how suitable a track is for dancing based on a combination of musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of 0.0 is least danceable and 1.0 is most danceable."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:15%"></figure> 
 
     </td> 
 
     <td>15%</td> 
 
    </tr> 
 
    <tr> 
 
     <td>Energy 
 
     <a href="#" data-tooltip="Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and activity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy, while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute include dynamic range, perceived loudness, timbre, onset rate, and general entropy."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:49%"></figure> 
 
     </td> 
 
     <td>49%</td> 
 
    </tr> 
 
    <tr> 
 
     <td>Instrumentalness 
 
     <a href="#" data-tooltip="Predicts whether a track contains no vocals. " Ooh " and "aah " sounds are treated as instrumental in this context. Rap or spoken word tracks are clearly "vocal 
 
     ". The closer the instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content. Values above 0.5 are intended to represent instrumental tracks, but confidence is higher as the value approaches 1.0."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:32%"></figure> 
 
     </td> 
 
     <td>32%</td> 
 
    </tr> 
 
    <tr> 
 
     <td>Liveness 
 
     <a href="#" data-tooltip="Detects the presence of an audience in the recording. Higher liveness values represent an increased probability that the track was performed live. A value above 0.8 provides strong likelihood that the track is live."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:65%"></figure> 
 
     </td> 
 
     <td>65%</td> 
 
    </tr> 
 
    <tr> 
 
     <td>speechiness 
 
     <a href="#" data-tooltip="Speechiness detects the presence of spoken words in a track. The more exclusively speech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value. Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33 and 0.66 describe tracks that may contain both music and speech, either in sections or layered, including such cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:11%"></figure> 
 
     </td> 
 
     <td>11%</td> 
 
    </tr> 
 
    <tr> 
 
     <td>Valence/Happiness 
 
     <a href="#" data-tooltip="A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track. Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with low valence sound more negative (e.g. sad, depressed, angry)."> 
 
      <img src="/assets/img/info.svg" alt="tip"> 
 
     </a> 
 
     </td> 
 
     <td> 
 
     <figure style="width:91%"></figure> 
 
     </td> 
 
     <td>91%</td> 
 
    </tbody> 
 
</table>

JS Fiddle demo。

Answer 2

您应该使用transition而不是关键帧。例如：

#dataanalysis td figure { 
    transition: width 2s normal; 
}