html, body {
    height: 100%;
}
.login_bg {
    background: url(../img/bg.png) no-repeat center;
    background-size: cover;
    overflow: hidden;
    position: relative;
}
.login {
    position: absolute;
    top: 120px;
    left: calc(50% - 210px);
    min-height: 420px;
    max-width: 420px;
    width: 420px;
    padding: 40px;
    background-color: #ffffff;
    border-radius: 4px;
    box-sizing: border-box;
}
.login .title {
    margin: 10px 0 0 -58px;
    padding: 18px 10px 18px 60px;
    background: #189F92;
    position: relative;
    color: #fff;
    font-size: 16px;
}
.login .dark_banner_wrap {
    background: url(../img/aiwrap.png);
    width: 18px;
    height: 10px;
    margin: 0 0 20px -58px;
    position: relative;
}
.login .login_input {
    height: 50px;
    display: block;
    width: 100%;
    padding-left: 10px;
    border: 1px solid #e6e6e6;
    border-radius: 2px;
    outline: 0;
    -webkit-appearance: none;
    transition: all .3s;
    -webkit-transition: all .3s;
    box-sizing: border-box;
    font-family: inherit;
    font-size: inherit;
    font-style: inherit;
    font-weight: inherit;
}

.login .login_btn {
    width: 100%;
    height: 50px;
    line-height: 50px;
    font-size: 18px;
    padding: 0 18px;
    background-color: #009688;
    color: #fff;
    white-space: nowrap;
    text-align: center;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    outline: none;
}
.h15 {
    height: 15px;
    width: 100%;
}