css z-index问题，将div放在容器div前面

时间：2012-01-06 17:18:32

标签： css

我在页面上有几个div，其中一个是容器，另一个内容，我不想改变。我有另一个div #more，我想要在容器的顶部或面前。你能帮忙吗？

     @charset "utf-8";
/* CSS Document */

body {
    color:#FFF;
    background-color:#000;
    font-family: "Bradley Hand ITC";
    margin:5%;  
    margin-top:2%;
}

#logo {
    z-index:1;
}

#code {
    margin-top:10%;
    padding-top:2em;
    margin-left:20%;
    margin-right:20%;
    text-align:center;
    z-index:2;
}

a:link {color:#FFF;
        text-decoration:none;
}      /* unvisited link */
a:visited {color:#FFF;
            text-decoration:none;
}  /* visited link */
a:hover {color:#FFF;            
            text-shadow: 2px 2px 2px #999;
}  /* mouse over link */



a:hover img {
    -webkit-transform:scale(1.2);
    -webkit-box-shadow:0px 0px 200px #ccc;
}

a:active {color:#FFF;
            text-decoration:none;
} /*active link */

p { padding: 0px; }

#contact_form_holder { 
    margin-left:33%;
    margin-top:5%;
    font-variant: small-caps; /* making the small letter looks like capital but keeping the size of it to smaller, looks cool */  
    width:400px; /* setting a fixed width of the contact form holder will make things easier later (like aligning and such) */  
    font-weight: bolder;
    border-radius: 5px;
    box-shadow:#CCC 0px 0px 50px 10px; 
    padding:15px;
}


#contact_form_holder input, #contact_form_holder textarea {  
    border-radius: 5px;
    border:#FFF solid;
    box-shadow:#CCC 0px 0px 10px; 
    width:80%; /* make all the inputs and the textarea same size (100% of the div they are into) */  
    font-family:  Verdana, Geneva, sans-serif ; /* we must set this, so it inherits the font-family */  
    background-color:#FFF;
    padding:5px; /* and make a custom padding, you can set whatever you like */  

}  
#contact_form_holder textarea {  
    height:100px; /* i never liked small textareas, so make it 100px in height */
}  
#send_message {  
    width:200px !important; /* the width of the submit button  */  
    font-variant: small-caps;/* nicer font-variant (like explained before) */ 
    border:1px solid black; /* remove the default border and put a normal black one */  
    cursor:pointer;  
    cursor:hand;    
}  

#cf_submit_p { text-align:rightright; } /* show the submit button aligned with the right side */  

.error {  
    display: none; /* hide the errors */  
                   /* add some styling */  
    padding:5px;  
    color: #D8000C;  
    font-size:14px;  
    background-color: #FFBABA;  
    width:250px;
    text-align:center;
    font-weight:bold;

}  
.success {  
    display: none; /* hide the sucess div */  
    /* add some styling */  
    padding:5px;  
    color: #044406;  
    font-size:12px;  
    background-color: #B7FBB9;  
}  

#contact_logo { 
    padding-left:170px;
}

.error img { vertical-align:top; }  

#instructions {
    background:#F00;
}

#more {
    z-index:100;
}


.fb-like {
    float:left;
}

h1.main,p.demos {
        -webkit-animation-delay: 18s;
        -moz-animation-delay: 18s;
        -ms-animation-delay: 18s;
    animation-delay: 18s;
}
.sp-container {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: -webkit-radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
    background: -moz-radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
    background: -ms-radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
    background: radial-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3) 35%, rgba(0, 0, 0, 0.7));
}
.sp-content {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0px;
    top: 0px;
    z-index: 5;
}
.sp-container h2 {
    position: absolute;
    top: 50%;
    line-height: 100px;
    height: 100px;
    margin-top: -50px;
    font-size: 100px;
    width: 100%;
    text-align: center;
    color: transparent;
        -webkit-animation: blurFadeInOut 3s ease-in backwards;
        -moz-animation: blurFadeInOut 3s ease-in backwards;
        -ms-animation: blurFadeInOut 3s ease-in backwards;
    animation: blurFadeInOut 3s ease-in backwards;
}
.sp-container h2.frame-1 {
        -webkit-animation-delay: 0s;
        -moz-animation-delay: 0s;
        -ms-animation-delay: 0s;
    animation-delay: 0s;
}
.sp-container h2.frame-2 {
        -webkit-animation-delay: 3s;
        -moz-animation-delay: 3s;
        -ms-animation-delay: 3s;
    animation-delay: 3s;
}
.sp-container h2.frame-3 {
        -webkit-animation-delay: 6s;
        -moz-animation-delay: 6s;
        -ms-animation-delay: 6s;
    animation-delay: 6s;
}
.sp-container h2.frame-4 {
    font-size: 200px;
    -webkit-animation-delay: 9s;
    -moz-animation-delay: 9s;
    -ms-animation-delay: 9s;
    animation-delay: 9s;
}
.sp-container h2.frame-5 {
        -webkit-animation: none;
        -moz-animation: none;
        -ms-animation: none;
    animation: none;
    color: transparent;
    text-shadow: 0px 0px 1px #fff;
}
.sp-container h2.frame-5 span {
        -webkit-animation: blurFadeIn 3s ease-in 12s backwards;
        -moz-animation: blurFadeIn 1s ease-in 12s backwards;
        -ms-animation: blurFadeIn 3s ease-in 12s backwards;
        animation: blurFadeIn 3s ease-in 12s backwards;
    color: transparent;
    text-shadow: 0px 0px 1px #fff;
}
.sp-container h2.frame-5 span:nth-child(2) {
        -webkit-animation-delay: 13s;
        -moz-animation-delay: 13s;
        -ms-animation-delay: 13s;
    animation-delay: 13s;
}
.sp-container h2.frame-5 span:nth-child(3) {
        -webkit-animation-delay: 14s;
        -moz-animation-delay: 14s;
        -ms-animation-delay: 14s;
    animation-delay: 14s;
}
.sp-globe {
    position: absolute;
    width: 282px;
    height: 273px;
    left: 50%;
    top: 50%;
    margin: -137px 0 0 -141px;
    background: transparent  url(images/globe.png) no-repeat top left;
        -webkit-animation: fadeInBack 3.6s linear 14s backwards;
        -moz-animation: fadeInBack 3.6s linear 14s backwards;
        -ms-animation: fadeInBack 3.6s linear 14s backwards;
    animation: fadeInBack 3.6s linear 14s backwards;
        -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
    filter: alpha(opacity=30);
    opacity: 0.3;
        -webkit-transform: scale(5);
        -moz-transform: scale(5);
        -o-transform: scale(5);
        -ms-transform: scale(5);
    transform: scale(5);
}
.sp-circle-link {
    position: absolute;
    left: 50%;
    bottom: 100px;
    margin-left: -50px;
    text-align: center;
    width: 100px;
    height: 100px;
    background: #666;
    color: #FFF;
    font-size: 20px;
    font-weight:bolder;
        -webkit-border-radius: 50%;
        -moz-border-radius: 50%;
    border-radius: 50%;
        -webkit-animation: fadeInRotate 1s linear 16s backwards;
        -moz-animation: fadeInRotate 1s linear 16s backwards;
        -ms-animation: fadeInRotate 1s linear 16s backwards;
    animation: fadeInRotate 1s linear 16s backwards;
        -webkit-transform: scale(1) rotate(0deg);
        -moz-transform: scale(1) rotate(0deg);
        -o-transform: scale(1) rotate(0deg);
        -ms-transform: scale(1) rotate(0deg);
    transform: scale(1) rotate(0deg);
}
.sp-circle-link:hover {
    background: #333;
    color: #FC0;
    text-shadow:none;
}

#find {
    padding-top:25%;
}

/**/
@-webkit-keyframes blurFadeInOut{
    0%{
        opacity: 0;
        text-shadow: 0px 0px 40px #fff;
        -webkit-transform: scale(1.3);
    }
    20%,75%{
        opacity: 1;
        text-shadow: 0px 0px 1px #fff;
        -webkit-transform: scale(1);
    }
    100%{
        opacity: 0;
        text-shadow: 0px 0px 50px #fff;
        -webkit-transform: scale(0);
    }
}
@-webkit-keyframes blurFadeIn{
    0%{
        opacity: 0;
        text-shadow: 0px 0px 40px #fff;
        -webkit-transform: scale(1.3);
    }
    50%{
        opacity: 0.5;
        text-shadow: 0px 0px 10px #fff;
        -webkit-transform: scale(1.1);
    }
    100%{
        opacity: 1;
        text-shadow: 0px 0px 1px #fff;
        -webkit-transform: scale(1);
    }
}
@-webkit-keyframes fadeInBack{
    0%{
        opacity: 0;
        -webkit-transform: scale(0);
    }
    50%{
        opacity: 0.4;
        -webkit-transform: scale(2);
    }
    100%{
        opacity: 0.2;
        -webkit-transform: scale(5);
    }
}
@-webkit-keyframes fadeInRotate{
    0%{
        opacity: 0;
        -webkit-transform: scale(0) rotate(360deg);
    }
    100%{
        opacity: 1;
        -webkit-transform: scale(1) rotate(0deg);
    }
}
/**/
@-moz-keyframes blurFadeInOut{
    0%{
        opacity: 0;
        text-shadow: 0px 0px 40px #fff;
        -moz-transform: scale(1.3);
    }
    20%,75%{
        opacity: 1;
        text-shadow: 0px 0px 1px #fff;
        -moz-transform: scale(1);
    }
    100%{
        opacity: 0;
        text-shadow: 0px 0px 50px #fff;
        -moz-transform: scale(0);
    }
}
@-moz-keyframes blurFadeIn{
    0%{
        opacity: 0;
        text-shadow: 0px 0px 40px #fff;
        -moz-transform: scale(1.3);
    }
    100%{
        opacity: 1;
        text-shadow: 0px 0px 1px #fff;
        -moz-transform: scale(1);
    }
}
@-moz-keyframes fadeInBack{
    0%{
        opacity: 0;
        -moz-transform: scale(0);
    }
    50%{
        opacity: 0.4;
        -moz-transform: scale(2);
    }
    100%{
        opacity: 0.2;
        -moz-transform: scale(5);
    }
}
@-moz-keyframes fadeInRotate{
    0%{
        opacity: 0;
        -moz-transform: scale(0) rotate(360deg);
    }
    100%{
        opacity: 1;
        -moz-transform: scale(1) rotate(0deg);
    }
}
/**/
@keyframes blurFadeInOut{
    0%{
        opacity: 0;
        text-shadow: 0px 0px 40px #fff;
        transform: scale(1.3);
    }
    20%,75%{
        opacity: 1;
        text-shadow: 0px 0px 1px #fff;
        transform: scale(1);
    }
    100%{
        opacity: 0;
        text-shadow: 0px 0px 50px #fff;
        transform: scale(0);
    }
}
@keyframes blurFadeIn{
    0%{
        opacity: 0;
        text-shadow: 0px 0px 40px #fff;
        transform: scale(1.3);
    }
    50%{
        opacity: 0.5;
        text-shadow: 0px 0px 10px #fff;
        transform: scale(1.1);
    }
    100%{
        opacity: 1;
        text-shadow: 0px 0px 1px #fff;
        transform: scale(1);
    }
}
@keyframes fadeInBack{
    0%{
        opacity: 0;
        transform: scale(0);
    }
    50%{
        opacity: 0.4;
        transform: scale(2);
    }
    100%{
        opacity: 0.2;
        transform: scale(5);
    }
}
@keyframes fadeInRotate{
    0%{
        opacity: 0;
        transform: scale(0) rotate(360deg);
    }
    100%{
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

2 个答案:

答案 0 :(得分：3)

z-index仅在div元素的位置为relative，absolute或fixed

时有效

示例：

#logo {
    position:relative;
    z-index:1;
}

#code {
    position:relative;
    margin-top:10%;
    padding-top:2em;
    margin-left:20%;
    margin-right:20%;
    text-align:center;
    z-index:2;
}

答案 1 :(得分：0)

为每个具有z-index的类和ID提供位置属性（位置：固定，位置：相对或位置：绝对），并且您的z-index将起作用。

如果你的div没有绝对定位或固定并且是正常的div放置，请使用position：relative。

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