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私のスキルをテストするためのレイアウトを作成しています。レイアウトを理解する
私はバーを作成しましたが（画像を参照）、これはカード divs（400x200画像）でオーバーラップしています。フォーム内のいくつかの要素（バー div）は、ページの下部に配置されていたはずですが、色付きのバーは間違った方法で配置されます。 結果とコードを目で見ることができます。 私が手を差し伸べたい結果の写真を添付しました。
不要な結果： 
$(function(){
var $buttonNav = $('.header__icon-bar');
var degree = 45;
$buttonNav.on('click', function(e){
e.preventDefault();
$('.header__nav').toggleClass('is-open');
$buttonNav.toggleClass('animate');
if($('.header__nav').hasClass('is-open')){
$('.header__icon-bar').css('transform','rotate(90deg)')
}else{
$('.header__icon-bar').css('transform','rotate(0deg)')
}
});//end of click event
});//end of $(document).ready()/*----------
GENERAL
-----------*/
html,body{ width: 100%; margin: 0; padding: 0; }
body{ background: #eee; }
.animate{
-webkit-trasform: rotate(90deg);
-ms-trasform: rotate(90deg);
trasform: rotate(90deg);
}
/*----------
HEADER
-----------*/
.header__nav{ display: block; float: right; margin: 0; padding: 20px; background: #333; margin-top: 50px; position: relative; z-index: 100;}
.header__nav__item{ display: inline-block; margin: 0; }
.header__nav__item a {padding: 30px; padding: 20px; margin: 0; color: white; text-decoration: none; text-transform: uppercase; }
.header__nav__item a:hover { background: #ff3333; }
/*----------
cover
-----------*/
.cover{ background-color: #333; height: 80% ; width: 100%;position: relative; margin-top: 90px; padding: 30px;}
.cover__text { color: white; width: 95%; position: relative; left: 40px; }
.cover__text p{ color: #999999; font-size: 20px; }
.line-through{padding: 1px; width: 750px; height: 1px; background-color: #e6ccb3; display: table; margin: 0 auto; z-index: 30px;}
.cover__image{ margin: 0; padding: 0; float: left; z-index: 3; width: 600px; height: 400px; z-index: 20; background-image: url(http://www.dejana.com/wp-content/uploads/2014/08/550x370.png);
background-size: cover;
-o-background-size: cover;
-moz-background-size: cover;
background-position: center; }
.cover__button { margin: 0 auto; display: table; padding: 20px}
.cover__button a{ padding: 20px; background-color: #ff3333;border-radius: 5px; text-decoration: none; color: black; font-weight: bold;}
.cover__button a:hover{ background: #eee; color: #ff3333; }
/* HIDING OVERFLOW ELEMENTS
html,body{overflow-x: hidden;}
*/
/*---------
CARD
----------*/
.card{ position: relative; margin-top: 30px; max-width: 1440px;}
.card__img {float: right; margin: 20px 10px; width: 400px; height: 200px}
.card__img:hover{opacity: 0.5}
/*----------
ICON-BAR
-----------*/
.header__icon-bar{ margin: 0; padding: 10px; background-color: #333; float: left; display: none;}
.header__icon-bar span { padding: 3px 1px; margin: 3px ; background-color: white;}
.header__background{display: none; height: 0px; background-color: #333; margin: 0;}
/*----------
ICON-BAR
-----------*/
.bar{ background-color: #333; height: 50px; border: 1px red solid; margin:0; padding: 0}
/*----------
SMARTPHONE
-----------*/
@media(max-width: 960px) {
/*header-Menu*/
.header{ width: 100%; padding: 0; margin: 0;}
.header__nav{ width: 100%; overflow: hidden; height: 0px; margin: 0; padding: 0; }
.header__nav__item { display: block; padding: 20px; margin: 0; position: relative;}
.header__nav__item a{ width: 100%;padding-right: 100%;}
.is-open{ display: block; height: 255px; background: #333; display: block; margin: 0;}
/*button of spaun menu(nav)*/
.header__icon-bar{ display: block;margin-top: 10px; margin-left: 10px; float: left; position: absolute;}
.header__background{display: block; background-color:#333; height: 60px; width: 100%}
/*cover*/
.cover{ height: auto; padding: 10px; margin-top: 30px; width: 100%}
.cover__image{ padding: 0; margin: 0; width: 97%; height: 400px; display: block; }
.cover__text{ margin: 0; left: 0; top: 20px; padding: 10px; width: 100%; display: block; overflow-y: scroll;}
.cover__text p {font-size: 16px}
.line-through{ width: 90%}
.cover__button { margin-top: 15px; position: relative; margin-bottom: 10px;}
.cover__button a{ padding: 10px; font-size: 15px;}
/*cards*/
.card{ margin-top: 50px }
.card__img{ margin: 0 ; padding: 10px 20px; }
}/*END OF @font-face */
*,
*:before,
*:after {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
/*----------
CLEARFIX
-----------*/
.clearfix:after {
visibility: hidden;
display: block;
font-size: 0;
content: " ";
clear: both;
height: 0;
}
* html .clearfix { zoom: 1; } /* IE6 */
*:first-child+html .clearfix { zoom: 1; } /* IE7 */<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<header class="header clearfix">
<div class="header__background">
<a class="header__icon-bar animate" href="">
<span></span>
<span></span>
<span></span>
</a>
</div>
<ul class="header__nav">
<li class="header__nav__item"> <a href="#"> Home </a> </li>
<li class="header__nav__item"> <a href="#"> Contact </a> </li>
<li class="header__nav__item"> <a href="#"> Apply </a> </li>
<li class="header__nav__item"> <a href="#"> About </a> </li>
</ul>
</header>
<div class="cover">
<div class="cover__image"></div>
<div class="cover__text">
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
<span class="line-through"></span>
<p>
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</p>
</div>
<div class="cover__button"><a href=""> Buy a New Course</a></div>
</div>
<section class="card">
<img class="card__img" src="http://tempuss.it/wp-content/uploads/2015/11/x400X200.gif.pagespeed.ic.ImNMmRjNoW.png" />
<img class="card__img" src="http://tempuss.it/wp-content/uploads/2015/11/x400X200.gif.pagespeed.ic.ImNMmRjNoW.png" />
<img class="card__img" src="http://tempuss.it/wp-content/uploads/2015/11/x400X200.gif.pagespeed.ic.ImNMmRjNoW.png" />
</section>
<section class="card">
<img class="card__img" src="http://tempuss.it/wp-content/uploads/2015/11/x400X200.gif.pagespeed.ic.ImNMmRjNoW.png" />
<img class="card__img" src="http://tempuss.it/wp-content/uploads/2015/11/x400X200.gif.pagespeed.ic.ImNMmRjNoW.png" />
<img class="card__img" src="http://tempuss.it/wp-content/uploads/2015/11/x400X200.gif.pagespeed.ic.ImNMmRjNoW.png" />
</section>
<div class="bar ">
<form action="" method="get">
<label for="email">Email</label><input type="email" name="email" value="[email protected]">
<input type="submit" value="Iscriviti"/>
</form>
</div>