*{
    margin: 0;
    padding: 0;
}
html{
    width: 100%;
    height: 100%;
}
body{
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction:column;
}
.head{
    flex: 1;
}
.middle{
    flex: 8;
    background: url(../img/bg4.jpg) no-repeat;
    background-size:100% 100%;
    width: 100%;
    height: 90%;
}
.middle .login-box{
    margin-top: 10%;
    margin-left: 65%;
    width: 20%;
    height: 42%;
    background: #E9E9F2;
    padding: 1em;
}
.middle .login-box .login-title{
    height: 18px;
    line-height: 18px;
    font-size: 16px;
    color: #3c3c3c;
    margin-top: 9px;
    padding-bottom: 8px;
    font-weight: 700;
}
.middle .login-box form .userName{
    height: 2.5em;
    width: 90%;
    background: white;
    margin: 0 auto;
    margin-top: 1em;
}
.middle .login-box form .userName .ico1{
    width: 40px;
    float: left;
    height: 100%;
    background-size: 100% 100%;
    background: url("../img/person.png");
}
.middle .login-box form .passWord .ico2{
    width: 40px;
    float: left;
    height: 100%;
    background-size: 100% 100%;
    background: url("../img/password.png");
}
.middle .login-box form .input1{
    padding: 10px 10px 10px 10px;
    height: 50%;
    width: calc(100% - 60px);
    background: white;
    border: none;
}
.middle .login-box form .passWord{
    height: 2.5em;
    width: 90%;
    background: white;
    margin: 0 auto;
    margin-top: 1em;
}
.middle .login-box form .login-btu{
    display: block;
    height: 3em;
    width: 90%;
    background: #FBBE6E;
    margin: 0 auto;
    margin-top: 1em;
    font-weight:bold;
    color: #5E5E5E;
    border-radius: 10%;
    letter-spacing: 15px;
}
.bottom{
    flex: 1;
}