如何在Ajax调用/HTML阻塞期间在旋转gif上添加文本
如何在Ajax调用/HTML阻塞期间在旋转gif上添加文本
提问于 2018-06-15 01:10:01
我找到了一个很好的解决方案here，可以在一个长时间(8-12秒)的Ajax调用中添加一个旋转的GIF，但是我不知道如何在GIF上方垂直居中一些文本，这些文本将保持在相同的相对位置，无论屏幕大小如何。
这是我到目前为止所知道的：
<style>
/* Start by setting display:none to make this hidden.
Then we position it in relation to the viewport window
with position:fixed. Width, height, top and left speak
for themselves. Background we set to 80% white with
our animation centered, and no-repeating */
.modalLoading {
display: none;
position: fixed;
z-index: 1000;
top: 0;
left: 0;
height: 100%;
width: 100%;
text-align: center;
background: rgba( 255, 255, 255, .8 )
/*url('http://i.stack.imgur.com/FhHRx.gif') */
url('<?php echo BASE_HDR_TAG . "contest/common/img/ajax-loader-red.gif"; ?>')
50% 50%
no-repeat;
}
/* When the body has the loading class, we turn
the scrollbar off with overflow:hidden */
body.loading .modalLoading {
overflow: hidden;
}
/* Anytime the body has the loading class, our
modal element will be visible */
body.loading .modalLoading {
display: block;
}
.modalFont {
color:#8B0000;
font-size: 20px;
font-weight:900;
font-family: 'Roboto', sans-serif;
}
</style>这个DIV在我身体的底部：
<div class="modalLoading">
<div style="margin-top:25px">
<span class="modalFont">Please wait while we generate your entry form, including the PDF copy.<br />
Do not click the back button or close this browser tab.</span>
</div>
</div>现在看起来是什么样子：
我希望它看起来是什么样子：
EDIT尝试从中编写的代码不会产生预期的结果。
/* Start by setting display:none to make this hidden.
Then we position it in relation to the viewport window
with position:fixed. Width, height, top and left speak
for themselves. Background we set to 80% white with
our animation centered, and no-repeating */
.modalLoading {
display: none; /* if this is set to 'Flex' then the modal blocking appears on page refresh */
position: fixed;
/*z-index: 1000;*/
top: 0;
right: 0;
bottom: 0;
left: 0;
/*height: 100%;
width: 100%;*/
align-items: center;
justify-content: center;
background: rgba( 255, 255, 255, .8 )
/*url('http://i.stack.imgur.com/FhHRx.gif') */
url('<?php echo BASE_HDR_TAG . "contest/common/img/ajax-loader-red.gif"; ?>')
50% 50%
no-repeat;
}
/* When the body has the loading class, we turn
the scrollbar off with overflow:hidden */
body.loading .modalLoading {
overflow: hidden;
}
/* Anytime the body has the loading class, our
modal element will be visible */
body.loading .modalLoading {
display: block;
}
.modalFont {
color:#8B0000;
font-size: 20px;
font-weight:900;
font-family: 'Roboto', sans-serif;
text-align: center;
margin-top: 100px;
}
<div class="modalLoading">
<span class="modalFont">Please wait while we generate your entry form, including the PDF copy.<br />
Do not click the back button or close this browser tab.</span>
</div>
通过设置display:none来隐藏EDIT 2 /* Start。然后我们使用position:fixed将其定位为相对于视口窗口的位置。宽度、高度、顶部和左侧不言而喻。背景设置为80%白色，动画居中，无重复*/ .modalLoading {显示: flex；位置:固定；/z索引: 1000;/顶部: 0；右侧: 0；底部: 0；左侧: 0；对齐: 100%；宽度: 100%;/ /height-项目:居中；对齐-内容:居中；背景: rgba( 255,255,255，.8 ) /*url('http://i.stack.imgur.com/FhHRx.gif') */ url('') 50%50%no-repeat；}
/* When the body has the loading class, we turn
the scrollbar off with overflow:hidden */
body.loading .modalLoading {
overflow: hidden;
}
/* Anytime the body has the loading class, our
modal element will be visible */
body.loading .modalLoading {
display: flex;
}
.modalFont {
color:#8B0000;
font-size: 20px;
font-weight:900;
font-family: 'Roboto', sans-serif;
text-align: center;
margin-top: 100px;
}
回答 1
Stack Overflow用户
回答已采纳
发布于 2018-06-15 15:29:46
要使文本垂直居中，一种可能的解决方案是使用flexbox。使用此HTML：
<div class="modalLoading">
<span class="modalFont">Please wait while we generate your entry form, including the PDF copy.<br />
Do not click the back button or close this browser tab.</span>
</div>您可以编写以下CSS：
.modalLoading{
position: fixed;
top: 0;
left: 0;
bottom: 0;
right: 0;
display: flex;
align-items: center;
justify-content: center;
background: rgba( 255, 255, 255, .8 ) url('http://i.stack.imgur.com/FhHRx.gif') 50% 50% no-repeat;
}
.modalFont{
margin-top: 100px; /* margin to move the text a little lower than gif loader. Change this margin with -100px if you want it to appear above the gif */
text-align: center;
}编辑1个
为了只在AJAX调用之后工作，我只编辑了CSS之前我写的HTML不会改变：
.modalLoading {
display: none; /* hidden when refresh the page */
position: fixed;
z-index: 1000;
top: 0;
right: 0;
bottom: 0;
left: 0;
/*height: 100%;
width: 100%;*/
align-items: center;
justify-content: center;
background: rgba( 255, 255, 255, .8 )
url('http://i.stack.imgur.com/FhHRx.gif')
50% 50%
no-repeat;
}
body.loading .modalLoading {
overflow: hidden;
}
body.loading .modalLoading {
display: flex; /*display using Flexbox */
}
.modalFont{
margin-top: 100px; /* margin to move the text a little lower than gif loader. Change this margin with -100px if you want it to appear above the gif */
text-align: center;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50862688
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