HTML/CSS : Bottom of body cut off

Question

也许是夜太晚了..我不确定，但我不明白为什么我的 body 底部被切断了。我尝试过调整边距/填充，但没有任何效果。

我最初在 body 元素上使用了 ID，但后来决定添加一个额外的 DIV，就在那时它就崩溃了。

它在 601 像素处被截断，这让我觉得我的边距被关闭了，但我无法判断。我想要 <div ID='index'>填满整个页面，但事实并非如此。

实例: http://jsfiddle.net/QbUKN/1/

CSS:

body {
    margin: 0;
    padding: 0;
}

#index {
    background: url(../img/bamboo.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover; 
    background-color:#b0c4de;
    /*
    position: absolute;
    width: 100%;
    height: 100%;
    z-index:-1; */
}

#profile {
    background: url(../img/lime.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}


#bird {
    z-index: 0;
    position: fixed;
    bottom: 0;
    left: 0;
}


/******** WELCOME PAGE ********/
#indexContent {
    padding-top: 150px;
}

#welcome {
    margin-left: 15%;
    margin-top: 150px;
    text-align: center;
    vertical-align: middle;
    float:left;
    width: 40%;
    z-index: 1;
}

#welcome h1, h2 {
    color: white;
    font-family: 'Poller One', cursive;

}

#login, #signup {
    margin: 10px 60%;
    background-color: #FCFAEE;
    padding: 0 25px 20px 15px;
    border:1px solid;
    border-radius: 15px;
    width: 300px;
    position: relative;
    z-index: 1;
    /*Box shadow to make div look like it is popping off screen
    -webkit-box-shadow: 0px 0px 30px rgba(0,0,0,0.75);
    -moz-box-shadow:    0px 0px 30px rgba(0,0,0,0.75);
    box-shadow:         0px 0px 30px rgba(0,0,0,0.75); */
}

#login h3, #signup h3 {
    border-bottom: 1px solid;
    padding-bottom: 10px;
    border-color: #D8D8D8;
    margin-bottom: 10px;
}

#login .button, #signup .button {
    width: 104%;
}

.textField{
    margin: 3px 0px;
    padding: 5px;
    width: 100%;
}


/******** PROFILE ********/
.fillPage {
    height: 100%;
    margin: 0;
    padding: 0;
}

#profileContent {
    /*background-color: rgba(255,255,255, .50);*/
    background-repeat:repeat;
    min-height: 100%;
    margin: 0 20% 0 20%;
    overflow: hidden; /* Removes background-color gap at end of page in IE */
    min-width: 600px;
}

#username {
    float: left;
    line-height: 1.5em;
}

#logout {
    float: right;
    margin-right: 25px;
}

#left {
    width: 250px;
    float: left;
    position: fixed;
}

#right{
    margin-left: 290px;
    margin-right: 50px;
}

#left, #right {
    padding-top: 70px;

}

.clear{
    clear: both;
}

#stickyNav {
    position: fixed;
    font-size: 1.5em;
    color: white;
    background: black;
    z-index: 1000;
    min-width: 100%;
    padding: 10px;
}

.menuItem {
    margin: 0px 10px 10px 10px;
    background-color: #FCFAEE;
    padding: 10px;
    border:1px solid;
    border-radius: 15px;
    width: 100%;
    position: relative;
    z-index: 1;
    -webkit-box-shadow: 2px 2px 0px  black;
    -moz-box-shadow: 2px 2px 0px  black;
    box-shadow: 2px 2px 0px black;

}

textarea {
    width: 100%;
    margin-bottom: 5px;
    vertical-align: top;
    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
    box-sizing: border-box;         /* Opera/IE 8+ */
    overflow: auto;
}


/******** Button Effects ********/
.button {
    width: 100%;
    -moz-box-shadow:inset 0px 1px 0px 0px #ffe0b5;
    -webkit-box-shadow:inset 0px 1px 0px 0px #ffe0b5;
    box-shadow:inset 0px 1px 0px 0px #ffe0b5;
    background:-webkit-gradient(linear, left top, left bottom, color-stop(0.05, #fbb450), color-stop(1, #f89306));
    background:-moz-linear-gradient(top, #fbb450 5%, #f89306 100%);
    background:-webkit-linear-gradient(top, #fbb450 5%, #f89306 100%);
    background:-o-linear-gradient(top, #fbb450 5%, #f89306 100%);
    background:-ms-linear-gradient(top, #fbb450 5%, #f89306 100%);
    background:linear-gradient(to bottom, #fbb450 5%, #f89306 100%);
    filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fbb450', endColorstr='#f89306',GradientType=0);
    background-color:#fbb450;
    -moz-border-radius:7px;
    -webkit-border-radius:7px;
    border-radius:7px;
    border:1px solid #c97e1c;
    display:inline-block;
    color:#ffffff;
    font-family:Trebuchet MS;
    font-size:17px;
    font-weight:normal;
    padding:6px 11px;
    text-decoration:none;
    text-shadow:0px 1px 0px #8f7f24;
}

.button:hover {
    background:-webkit-gradient(linear, left top, left bottom, color-stop(0.05, #f89306), color-stop(1, #fbb450));
    background:-moz-linear-gradient(top, #f89306 5%, #fbb450 100%);
    background:-webkit-linear-gradient(top, #f89306 5%, #fbb450 100%);
    background:-o-linear-gradient(top, #f89306 5%, #fbb450 100%);
    background:-ms-linear-gradient(top, #f89306 5%, #fbb450 100%);
    background:linear-gradient(to bottom, #f89306 5%, #fbb450 100%);
    filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f89306', endColorstr='#fbb450',GradientType=0);
    background-color:#f89306;
}

.button:active {
    position:relative;
    top:1px;
}

HTML:

<div id="index">

<div id="indexContent">
    <div id="welcome">
        <h1>Welcome!</h1>
        <h2>MORE STUFF</h2>
    </div>

    <div id="login">
        <form name="login" action="users/profile" method="post">
            <h3>Please Sign In</h3>
            <input class="textField" type="text" name="email" placeholder="Username or Email"/><br/>
            <input class="textField" type="text" name="password" placeholder="Password"/><br/>
            <input class="button"    type="submit" value="Sign In"/>
        </form>
    </div>

    <div id="signup">
        <form>
            <h3>Sign up</h3>
            <input class="textField" type="text" name="name" placeholder="Full Name"/><br/>
            <input class="textField" type="text" name="email" placeholder="Email"/><br/>
            <input class="textField" type="text" name="password" placeholder="Password"/><br/>
            <input class="button"    type="submit" value="Sign Up" />
        </form>
    </div>
</div>

<div id="bird">
    <img src="img/parrot.png" alt="Parrot" />
</div>

</div>

Answer 1

如果您希望背景填满整个页面，则应将背景样式保留在 body 上。在索引 div 中，内容的高度只有 601 像素，这就是背景在 601 像素处截断的原因。

编辑:这可能就是您想要的。

html {
    height: 100%;
}
body {
    height: 100%;
}
#index {
    height: 100%;
}

fiddle