html - float div 底部的对齐按钮

Question

我有一个带有图 block 的概览页面，我使用 matchheight 库来动态确定行的高度。现在我想对齐 div 底部的“更多”按钮，这样它在较小的屏幕上看起来就不会像屏幕截图那样凌乱。

我尝试使用“bottom: 20px”和“left: 40%”制作按钮“position: absolute”，但这会导致响应问题。在某些分辨率下没问题，但在其他分辨率下按钮太靠右了。

我能否以一种很好的方式解决这个问题，而不必为每个分辨率使用媒体属性？

/* Block: Overview */
#overview {
    padding-top: 50px;
    width: 100%;
}
.overview {
    text-align: center;
    padding-bottom: 50px;
}
.overview img {
    width: 100%;
    vertical-align: middle;
    padding-bottom: 30px;
}
.card-title {
    text-align: center;
    letter-spacing: -1px;
    font-weight: 600;
    font-size: 20px;
}
.card-subtitle {
    margin-bottom: 0;
    font-style: italic;
    font-weight: 400;
    font-size: 15px;
    font-family: "Lora", serif;
    color: #cccccc;
    margin-top: -1rem;
    line-height: 1.7857;
    padding-bottom: 1rem;
    text-align: center;
}
.btn-card {
    background-color: #cccccc;
    border-color: #404040;
    color: #404040;
    letter-spacing: 2px;
    padding: 10px 20px;
    horiz-align: center;
    position: relative;
    margin-bottom: 0;
}
.btn-card:hover {
    background-color: #ffffff;
    color: #404040;
    border-color: #404040;
    letter-spacing: 2px;
    padding: 10px 20px;
}

<div class="col-sm-3 overview row-eq-height">
            <div class="col-sm-12 text-center wow fadeInLeft">
                <img alt="Heavy Entertainment Show" src="/images/discography/the-heavy-entertainment-show-1.jpg">
            </div>
            <h3 class="card-title">Heavy Entertainment Show</h3>
            <h4 class="card-subtitle">November 4<sup>th</sup>, 2016</h4>
            <a href="/album/the-heavy-entertainment-show/" title="Show details of Heavy Entertainment Show">
                <button class="btn btn-card">MORE</button>
            </a>
        </div>
        <div class="col-sm-3 overview row-eq-height">
            <div class="col-sm-12 text-center wow fadeInLeft">
                <img alt="Under the Radar Vol 1" src="/images/discography/under-the-radar-vol-1-1.jpg">
            </div>
            <h3 class="card-title">Under the Radar Vol 1</h3>
            <h4 class="card-subtitle">December 1<sup>st</sup>, 2014</h4>
            <a href="/album/under-the-radar-vol-1/" title="Show details of Under the Radar Vol 1">
                <button class="btn btn-card">MORE</button>
            </a>
        </div>
        <div class="col-sm-3 overview row-eq-height">
            <div class="col-sm-12 text-center wow fadeInLeft">
                <img alt="Swings Both Ways" src="/images/discography/swings-both-ways-1.jpg">
            </div>
            <h3 class="card-title">Swings Both Ways</h3>
            <h4 class="card-subtitle">November 18<sup>th</sup>, 2013</h4>
            <a href="/album/swings-both-ways/" title="Show details of Swings Both Ways">
                <button class="btn btn-card">MORE</button>
            </a>
        </div>
        <div class="col-sm-3 overview row-eq-height">
            <div class="col-sm-12 text-center wow fadeInLeft">
                <img alt="Take the Crown" src="/images/discography/take-the-crown-1.jpg">
            </div>
            <h3 class="card-title">Take the Crown</h3>
            <h4 class="card-subtitle">November 2<sup>nd</sup>, 2012</h4>
            <a href="/album/take-the-crown/" title="Show details of Take the Crown">
                <button class="btn btn-card">MORE</button>
            </a>
        </div>

Answer 1

这是正确的解决方案，添加了“transform:translateX(-50%);”对齐。感谢您的帮助!

.btn-card {
    background-color: #cccccc;
    border-color: #404040;
    color: #404040;
    letter-spacing: 2px;
    padding: 10px 20px;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform:translateX(-50%);
    margin-bottom: 20px;