我不明白为什么以及如何解决红色块将进入下一行的事实。我可以在第二个和第三个块中使用margin-left: 5%
进行修复,但这是不对的。那么,如何将所有三个块分布在一行中,并使其总宽度的边距等于100%?]
.clearfix::after {
content: " ";
visibility: hidden;
display: block;
height: 0;
clear: both;
}
.common-block {
background-color: wheat;
width: 800px;
height: 400px;
padding-top:20px;
}
.items {
background-color: white;
max-width: 600px;
padding:20px;
margin:auto;
overflow: auto;
}
.item {
float: left;
width: 30%;
margin-left: 5%;
border-bottom: 1px solid black;
height: 50px;
}
.item-1 {
background-color: yellow;
}
.item-2 {
background-color: green;
}
.item-3 {
background-color: red;
}
<div class="common-block">
<div class="items">
<div class="item item-1"></div>
<div class="item item-2"></div>
<div class="item item-3"></div>
</div>
</div>
3 *(30%+ 5%)等于105%(=大于100%),这就是原因。将保证金值更改为3%即可使用(3 *(30%+ 3%)= 99%)。
.clearfix::after {
content: " ";
visibility: hidden;
display: block;
height: 0;
clear: both;
}
.common-block {
background-color: wheat;
width: 800px;
height: 400px;
padding-top:20px;
}
.items {
background-color: white;
max-width: 600px;
padding:20px;
margin:auto;
overflow: auto;
}
.item {
float: left;
width: 30%;
margin-left: 3%;
border-bottom: 1px solid black;
height: 50px;
}
.item-1 {
background-color: yellow;
}
.item-2 {
background-color: green;
}
.item-3 {
background-color: red;
}
<div class="common-block">
<div class="items">
<div class="item item-1"></div>
<div class="item item-2"></div>
<div class="item item-3"></div>
</div>
</div>
作为替代方案,您可以仅将左边距应用于第二和第三块,并将其保留为5%。这也将使块在其容器内居中:
.clearfix::after {
content: " ";
visibility: hidden;
display: block;
height: 0;
clear: both;
}
.common-block {
background-color: wheat;
width: 800px;
height: 400px;
padding-top: 20px;
}
.items {
background-color: white;
max-width: 600px;
padding: 20px;
margin: auto;
overflow: auto;
}
.item {
float: left;
width: 30%;
border-bottom: 1px solid black;
height: 50px;
}
.item-1 {
background-color: yellow;
}
.item-2 {
background-color: green;
}
.item-3 {
background-color: red;
}
.item-2,
.item-3 {
margin-left: 5%;
}
<div class="common-block">
<div class="items">
<div class="item item-1"></div>
<div class="item item-2"></div>
<div class="item item-3"></div>
</div>
</div>