为什么当我调整浏览器大小时，div 之间有时会有间隙?

Question

如果调整浏览器大小，则.services-items底部和父div(.services(之间存在间隙。代码如下：

#one {
background-color: #fff;
height: 50%;
width: 100%;
}
#two {
background-color: #fff;
height: 50%;
width: 100%;
}
body,
html {
height: 100%;
background-color: #000;
}
* {
margin: 0;
}
.services {
background: green;
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
-ms-flex-direction: row;
flex-direction: row;
padding: 0 50px;
color: #fff;
}
.services-items {
-webkit-box-flex: 1;
-ms-flex-positive: 1;
flex-grow: 1;
background-color: rgba(0, 0, 0, 0.5);
padding: 50px;
height: auto;
text-align: center;
position: relative;
}
.services-items h2 {
margin: 20px 0;
}
.services-items p {
line-height: 150%;
}

<div id="one"></div>
<div class="services">
<a>
<div class="services-items">
<h2>Service 1</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Similique amet atque recusandae, consequatur facere nesciunt. Placeat nostrum, aliquam suscipit. Tempore obcaecati sed eligendi cumque! Quo et, quod veniam nulla maxime quos voluptas harum
odio ipsam libero repellat dicta hic. Eos!</p>
</div>
</a>
<a>
<div class="services-items">
<h2>Service 2</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perferendis pariatur vitae illum, alias suscipit ipsa soluta optio eos officia ducimus incidunt maiores molestias velit, delectus libero, ad eaque repellendus. Rerum, rem doloribus, cupiditate
quos ex hic porro distinctio beatae. Vero, harum, autem. Quo itaque assumenda, mollitia et repellendus vel porro.</p>
</div>
</a>
<a>
<div class="services-items">
<h2>Service 3</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Praesentium error et animi, porro omnis facilis voluptatum vel voluptatem pariatur quasi debitis in ratione voluptas eos ex maiores adipisci, nesciunt aliquid alias maxime accusamus veritatis?
Dignissimos, perspiciatis deserunt numquam animi rerum aliquid mollitia, blanditiis dolore architecto.</p>
<h3>Jos haluat tämän palvelun/tuotteen, ota yhteyttä ja kerro viestissä.</h3>
</div>
</a>
</div>
<div id="two"></div>

Answer 1

将height:100%添加到service-items并添加

*{box-sizing:border-box;}到您的 CSS 文件

这是必需的，因为边框框

在元素的总宽度和高度中包含填充和边框：

*{box-sizing:border-box;}
#one {
background-color: #fff;
height: 50%;
width: 100%;
}
#two {
background-color: #fff;
height: 50%;
width: 100%;
}
body,
html {
height: 100%;
background-color: #000;
}
* {
margin: 0;
}
.services {
background: green;
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
-ms-flex-direction: row;
flex-direction: row;
padding: 0 50px;
color: #fff;
}
.services-items {
-webkit-box-flex: 1;
-ms-flex-positive: 1;
flex-grow: 1;
background-color: rgba(0, 0, 0, 0.5);
padding: 50px;
height: 100%;
text-align: center;
position: relative;
}
.services-items h2 {
margin: 20px 0;
}
.services-items p {
line-height: 150%;
}

<div id="one"></div>
<div class="services">
<a>
<div class="services-items">
<h2>Service 1</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Similique amet atque recusandae, consequatur facere nesciunt. Placeat nostrum, aliquam suscipit. Tempore obcaecati sed eligendi cumque! Quo et, quod veniam nulla maxime quos voluptas harum
odio ipsam libero repellat dicta hic. Eos!</p>
</div>
</a>
<a>
<div class="services-items">
<h2>Service 2</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perferendis pariatur vitae illum, alias suscipit ipsa soluta optio eos officia ducimus incidunt maiores molestias velit, delectus libero, ad eaque repellendus. Rerum, rem doloribus, cupiditate
quos ex hic porro distinctio beatae. Vero, harum, autem. Quo itaque assumenda, mollitia et repellendus vel porro.</p>
</div>
</a>
<a>
<div class="services-items">
<h2>Service 3</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Praesentium error et animi, porro omnis facilis voluptatum vel voluptatem pariatur quasi debitis in ratione voluptas eos ex maiores adipisci, nesciunt aliquid alias maxime accusamus veritatis?
Dignissimos, perspiciatis deserunt numquam animi rerum aliquid mollitia, blanditiis dolore architecto.</p>
<h3>Jos haluat tämän palvelun/tuotteen, ota yhteyttä ja kerro viestissä.</h3>
</div>
</a>
</div>
<div id="two"></div>

Answer 2

为您的代码提供另一种解决方案

.services a {
display: flex;
align-self: stretch; 
}