我对前端开发和基金会非常新。
我试图获得< div class =“main-header”>以成为响应地缩小的全屏图像。
任何人都可以告诉我我做错了什么？它正确缩放，但不显示完整的图像。我也想要< div class =“large-6 large-offset-6 columns”>坐在它上面的移动设备 – 这是可能吗？
HTML：
<!-- MAIN HEADER -->
<div class="main-header">
<div class="row">
<div class="large-6 large-offset-6 columns">
<h1 class="logo">BleepBleeps</h1>
<h3>A family of little friends<br>that make parenting easier</h3>
</div> <!-- END large-6 large-offset-6 columns -->
</div><!-- END ROW -->
</div><!-- END MAIN-HEADER -->
CSS：
.main-header {
background-image: url(../img/bb-background2.png);
background-repeat: no-repeat;
background-position: center;
background-size: cover;
width: 100%;
height: 100%;
}
h1.logo {
text-indent: -9999px;
height:115px;
margin-top: 10%;
}
解决方法
http://css-tricks.com/perfect-full-page-background-image/
//HTML
<img src="images/bg.jpg" id="bg" alt="">
//CSS
#bg {
position: fixed;
top: 0;
left: 0;
/* Preserve aspet ratio */
min-width: 100%;
min-height: 100%;
}
要么
img.bg {
/* Set rules to fill background */
min-height: 100%;
min-width: 1024px;
/* Set up proportionate scaling */
width: 100%;
height: auto;
/* Set up positioning */
position: fixed;
top: 0;
left: 0;
}
@media screen and (max-width: 1024px) { /* Specific to this particular image */
img.bg {
left: 50%;
margin-left: -512px; /* 50% */
}
}
要么
//HTML
<img src="images/bg.jpg" id="bg" alt="">
//CSS
#bg { position: fixed; top: 0; left: 0; }
.bgwidth { width: 100%; }
.bgheight { height: 100%; }
//jQuery
$(window).load(function() {
var theWindow = $(window),$bg = $("#bg"),aspectRatio = $bg.width() / $bg.height();
function resizeBg() {
if ( (theWindow.width() / theWindow.height()) < aspectRatio ) {
$bg
.removeClass()
.addClass('bgheight');
} else {
$bg
.removeClass()
.addClass('bgwidth');
}
}
theWindow.resize(resizeBg).trigger("resize");
});
