我已经在:before
上使用:after
和<span>
伪元素创建了一个自定义复选框,该复选框在单行上效果很好,但是当还有更多复选框时,刻度线会悬停在复选框上方<span>
中一行文本。
我尝试使用相对值进行定位,但没有任何效果。
<ul class="calendar-filter-menu-cont">
<li>
<label>
<input type="checkbox">
<span>One line</span>
</label>
</li>
<li>
<label>
<input type="checkbox">
<span>This is the second item in the list</span>
</label>
</li>
<li>
<label>
<input type="checkbox">
<span>This is the third item in the list</span>
</label>
</li>
</ul>
ul.calendar-filter-menu-cont {
color: black;
column-count: 3;
max-width: 500px;
}
ul.calendar-filter-menu-cont > li {
break-inside: avoid-column;
}
ul.calendar-filter-menu-cont > li label {
display: flex;
position: relative;
}
ul.calendar-filter-menu-cont > li label:not(:last-child) {
margin-bottom: 10px;
}
ul.calendar-filter-menu-cont > li label input[type="checkbox"] {
margin-right: 1em;
opacity: 0;
}
ul.calendar-filter-menu-cont > li label input[type="checkbox"] + span:before {
content: '';
display: inline-block;
position: absolute;
top: 50%;
left: 0;
transform: translateY(-50%);
border: 1px solid #979797;
width: .8em;
height: .8em;
background-color: #f3f3f3;
box-shadow: inset 0 0 5px 0 rgba(0, 0, 0, 0.2);
}
ul.calendar-filter-menu-cont > li label input[type="checkbox"]:checked + span:after {
content: '';
position: absolute;
top: .7ex;
left: .35ex;
width: .9ex;
height: .45ex;
background: rgba(0, 0, 0, 0);
border: 3px solid blue;
border-top: none;
border-right: none;
transform: rotate(-45deg);
}
答案 0 :(得分:1)
所以问题在于您的:before
和:after
的属性不一致。 :before
垂直居中,:after
顶部对齐。
如果您想将复选框居中放置在输入框中,例如:
您需要使选中标记居中,例如:
ul.calendar-filter-menu-cont > li label input[type="checkbox"]:checked + span:after {
content: '';
position: absolute;
top: .7ex;
left: .35ex;
width: .9ex;
height: .45ex;
background: rgba(0, 0, 0, 0);
border: 3px solid blue;
border-top: none;
border-right: none;
top: calc(50% - 1px); // Addition
transform: translateY(-50%) rotate(-45deg); // Change
}
更改包括添加top
属性和向translateY
添加transform
值
如果要使复选框的顶部与输入对齐,例如:
只需删除transform
并将top
属性更改为静态值,例如:
ul.calendar-filter-menu-cont > li label input[type="checkbox"] + span:before {
content: '';
display: inline-block;
position: absolute;
top: .3ex; // Change
left: 0;
/* transform: translateY(-50%); */ // Remove
border: 1px solid #979797;
width: .8em;
height: .8em;
background-color: #f3f3f3;
box-shadow: inset 0 0 5px 0 rgba(0, 0, 0, 0.2);
}