我正在尝试创建一个按钮,在等待响应时显示加载微调器。但是有一些奇怪的事情发生在我根本不理解的地方。
我有以下带有一堆CSS的HTML:
<button type="submit" disabled="true" class="btn btn-blue btn-loading">
<div class="btn-loading-text">Update profile</div>
<div class="btn-loading-spinner"></div>
</button>
如果你注释掉微调元素,那么“更新配置文件”会在中心对齐,即使我没有要求它。
* {
box-sizing: border-box;
}
.btn-loading {
border-radius: 2px;
font-size: 13px;
font-family: arial, helvetica, sans-serif;
text-decoration: none;
display: inline-block;
font-weight: bold;
outline: 0;
background: #f5f5f5 !important;
border: 1px solid #ddd !important;
color: #aaa !important;
cursor: default !important;
overflow: hidden;
height: 40px;
}
.btn-loading-text {
float: left;
margin: 0px 15px 0px 15px;
}
.btn-loading-spinner {
float: left;
height: 25px;
width: 25px;
margin: 7px 15px 6px -5px;
position: relative;
animation: rotation .9s infinite linear;
border-left: 3px solid #ddd;
border-right: 3px solid #ddd;
border-bottom: 3px solid #ddd;
border-top: 3px solid #aaa;
border-radius: 100%;
}
@keyframes rotation {
from {
transform: rotate(0deg);
}
to {
transform: rotate(359deg);
}
}
<button type="submit" disabled="true" class="btn-loading">
<div class="btn-loading-text">Update profile</div>
<!--<div class="btn-loading-spinner"></div>-->
</button>
但是当旋转器元素出现时,它会突然出现在顶部。我不知道发生了什么。
* {
box-sizing: border-box;
}
.btn-loading {
border-radius: 2px;
font-size: 13px;
font-family: arial, helvetica, sans-serif;
text-decoration: none;
display: inline-block;
font-weight: bold;
outline: 0;
background: #f5f5f5 !important;
border: 1px solid #ddd !important;
color: #aaa !important;
cursor: default !important;
overflow: hidden;
height: 40px;
}
.btn-loading-text {
float: left;
margin: 0px 15px 0px 15px;
}
.btn-loading-spinner {
float: left;
height: 25px;
width: 25px;
margin: 7px 15px 6px -5px;
position: relative;
animation: rotation .9s infinite linear;
border-left: 3px solid #ddd;
border-right: 3px solid #ddd;
border-bottom: 3px solid #ddd;
border-top: 3px solid #aaa;
border-radius: 100%;
}
@keyframes rotation {
from {
transform: rotate(0deg);
}
to {
transform: rotate(359deg);
}
}
<button type="submit" disabled="true" class="btn-loading">
<div class="btn-loading-text">Update profile</div>
<div class="btn-loading-spinner"></div>
</button>
答案 0 :(得分:1)
按钮元素的内容与中间垂直对齐。
当你只有.btn-loading-text
时,该元素高16像素,按钮高38像素,所以.btn-loading-text
与中间对齐。
但是,当你还包括高度为38px的.btn-loading-spinner
(包括边框和边距)时,按钮的内容与最高的元素一样高,所以38px。所以与中间的对齐并不明显。
如果您想将每个元素与中间对齐,而不是将内容整体对齐,则可以使用display: inline-block
代替float: left
和vertical-align: middle
。
.btn-loading-text, .btn-loading-spinner {
float: none; /* Initial value */
display: inline-block;
vertical-align: middle;
}
* {
box-sizing: border-box;
}
.btn-loading {
border-radius: 2px;
font-size: 13px;
font-family: arial, helvetica, sans-serif;
text-decoration: none;
display: inline-block;
font-weight: bold;
outline: 0;
background: #f5f5f5 !important;
border: 1px solid #ddd !important;
color: #aaa !important;
cursor: default !important;
overflow: hidden;
height: 40px;
}
.btn-loading-text, .btn-loading-spinner {
display: inline-block;
vertical-align: middle;
}
.btn-loading-text {
margin: 0px 15px 0px 15px;
}
.btn-loading-spinner {
height: 25px;
width: 25px;
margin: 7px 15px 6px -5px;
position: relative;
animation: rotation .9s infinite linear;
border-left: 3px solid #ddd;
border-right: 3px solid #ddd;
border-bottom: 3px solid #ddd;
border-top: 3px solid #aaa;
border-radius: 100%;
}
@keyframes rotation {
from {
transform: rotate(0deg);
}
to {
transform: rotate(359deg);
}
}
&#13;
<button type="submit" disabled="true" class="btn-loading">
<div class="btn-loading-text">Update profile</div>
<div class="btn-loading-spinner"></div>
</button>
&#13;