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css部分：

/*=========(通用)===========*/
*{
    /*重置样式*/
    margin: 0;
    padding: 0;
    position: relative;
}



/*==========顶部===========*/
#header{
    height: 120px;
    /*background-color: paleturquoise;*/
}

#header #top{
    height: 80px;
    /*background-color: #98FB98;*/
}

#header #top div{
    width: 292px;
    /*height: 80px;*/
    /*background-color: pink;*/
    
    position: absolute;
    left: 278px;
    
    top:50%;
    margin-top: -30px;
    line-height: 60px;
}

#header #top #survey{
    position: absolute;
    right: 278px;
    bottom: 11px;
    color: #979797;
    font-size: 12.5px;
    font-family: "宋体";
    
    text-decoration: none;
    
    /*添加背景图*/
    /*backgroud:url(图片地址) repeat/no-repeat x y 背景颜色
     x,y：x坐标和y坐标对应的值，除了可以设置数字值以外，还可以设置center，让背景图在x方向和y方向居中
     * */
    padding-left: 20px;
    background: url(../img/q-icon.png) no-repeat;
    
}

#header #top #survey:hover{
    color: red;
    text-decoration: underline;
}

#header #bottom{
    height: 40px;
    background-color: #FFF8F0;
    text-align: center;
}

#header #bottom p{
    color: #979797;
    font-size: 12.5px;
    line-height: 40px;
}

#header #bottom p a{
    color: black;
    text-decoration: none;
}

#header #bottom p a:hover{
    color: black;
    text-decoration: underline;
}

#header #bottom p img{
    /*垂直居中*/
    height: 25px;
    position: absolute;
    top: 50%;
    margin-top: -11px;
    line-height: 25px;
}

/*==========中间===========*/
#content{
    height: 470px;
    background-color: #f282a6;
}

#content #bg{
    position: absolute;
    left: 278px;
}

#content #logoin_page{
    height: 400px;
    width: 340px;
    background-color: white;
    
    position: absolute;
    right: 278px;
    top: 10px;
}

#content #logoin_page #div1{
    height: 40px;
    background-color: #FFF8F0;
}

#content #logoin_page #div1 p{
    font-size: 12px;
    line-height: 40px;
    color: #979797;
    text-align: center;
}

#content #logoin_page #div1 img{
    position: absolute;
    line-height: 40px;
    top: 50%;
    margin: -12px 0 0 0;
}

#content #logoin_page #div2{
    height:60px ;
    
    color: rgba(0, 0, 0, 0.6);
    
    font-weight: 100;
}

#content #logoin_page #div2 button{
    height: 100%;
    width: 48%;
    background-color: white;
    border: 0;
    /*float: left;*/font-size: 18px;
    color: #979797;
    sty
    font-size: 18px;
    
}

#content #logoin_page #div2 button:focus{
    color: red;
    outline: 0;
}

#content #logoin_page #div3{
    height: 250px;
    
    border-top: solid rgba(244, 244, 244, 0.6) 1px;
    border-bottom: solid rgba(244, 244, 244, 0.6) 1px;
}

#content #logoin_page #div3 div{
    /*background: #98FB98;*/
    width: 90%;
    height: 40px;
    
    margin-left: 5%;
    margin-top: 30px;
    
    border: solid rgba(97, 97, 97, 0.6) 1px;
}

#content #logoin_page #div3 #username{
    /*margin-top: 30px;*/
}

#content #logoin_page #div3 div img{
    width: 40px;
    height: 40px;
    float: left;
    border-right: solid rgba(97, 97, 97, 0.6) 1px;
}

#content #logoin_page #div3 div input{
    height: 40px;
    width: 255px;
    
    border: 0;
    float: left;
    
    padding-left: 10px;
    
    font-size: 13px;
}

#content #logoin_page #div3 div input:focus{
    outline: 0;
}

#content #logoin_page #div3 a{
    position: absolute;
    right: 25px;
    margin-top: 20px;
    
    color: #979797;
    font-size: 12px;
    text-decoration: none;
}

#content #logoin_page #div3 a:hover{
    color: red;
    text-decoration: underline;
}

#content #logoin_page #div3 button{
    width: 90%;
    margin-left: 5%;
    height: 35px;
    position: absolute;
    bottom: 20px;
    
    background-color: #e3393a;
    border: none;
    
    color: white;
    font-size: 20px;
    
}

#content #logoin_page #div4{
    height: 50px;
    background-color: #fcfcfc;
    line-height: 50px;
    
    color: rgba(244,244,244);
}

#content #logoin_page #div4 #a1{
    margin-left: 17px;
    margin-right: 10px;
    line-height: 25px;
    color: #979797;
    font-size: 13px;
    
    text-decoration: none;
    
    padding-left: 25px;
    /*background-color: black;*/
    background: url(../img/qq.png) no-repeat 0 center;
}

#content #logoin_page #div4 #a2{
    margin-left: 10px;
    margin-right: 13px;
    
    color: #979797;
    font-size: 13px;
    
    text-decoration: none;
    padding-left: 25px;
    background: url(../img/weixin.png) no-repeat 0 center;
}

#content #logoin_page #div4 #a3{
    position: absolute;
    right: 13px;
    
    font-size: 14px;
    text-decoration: none;
    
    color: #E3393A;
    padding-left: 25px;
    background: url(../img/right.png) no-repeat 0 center;
}

#content #logoin_page #div4 #a1:hover{
    color: red;
    text-decoration: underline;
}

#content #logoin_page #div4 #a2:hover{
    color: red;
    text-decoration: underline;
}

#content #logoin_page #div4 #a3:hover{
    text-decoration: underline;
}

/*==========底部============*/
#footer{
    height: 106px;
    background-color: white;
    text-align: center;
}

#footer div{
    height: 50px;
    
    text-align: center;
    line-height: 50px;
    
    font-size: 12px;
    color: #6a6a6a;
}

#footer div a{
    margin: 0 12px;
    color: #6a6a6a;
    text-decoration: none;
     
}

#footer div a:hover{
    color: red;
    text-decoration: underline;
}

#footer p{
    color: #6a6a6a;
    font-size: 11.5px;
}

效果：

image.png