*, *:before, *:after {
    box-sizing: border-box;
    position: relative;
}

body {
    display: flex;
    justify-content: center;
    align-items:center;
    /*background-color: rgba(44, 48, 90, 0.74);*/
    background-color: rgba(44, 48, 90, 0.74);
}
html, body {
    /*background-image: url('/static/image/loginbg.png');*/
    background-repeat: no-repeat;
    background-size: cover;
    background-position: bottom;
    width: 100%;
    height: 100%;
    margin: 0;
}
.main{
    width: 50%;
    min-width: 300px;
    max-width: 800px;
    height: 50%;
    min-height: 400px;
    max-height: 600px;
    background-color: #fff;
    position: relative;
    padding:10px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    border-radius:0 10px 10px 0;
}
.main>div{
    position: absolute;
    width: 50%;
    height: 120%;
    left:0;
    top:-10%;
    background-color: rgb(53, 57, 95);
    border-radius: 10px 50% 50% 10px;
    display: flex;
    flex-flow: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding:40px;
    color: #fff;
}
.main>div>span:nth-of-type(1){
    font-size: 30px;
}
.main>div>span:nth-of-type(2){
    font-size: 20px;
    margin-top: 20px;
}
.main>div>img{
    width: 100%;
    flex:1;
    height: 0;
}
form {
    background:#fff;
    width: 40%;
    height:100%;
    display: flex;
    flex-flow: column;
    justify-content: flex-end;
    align-items: center;
    padding: 1.5rem 2rem 1rem 2rem;
}
form>img{
    width: 5rem;
    height:5rem;
    margin-bottom: 1rem;
}
form>div{
    width: 100%;
    height:3rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    padding:0 .5rem;
    border:1px solid #cccabc;
    border-radius:5px;
}
form>div>img:not(.verify_image){
    width:2rem;
    height:2rem;
    margin-right:.5rem;
}
.verify_image{
    width:5rem;
    height:2rem;
    margin-left:.5rem;
    border-radius: 2px;
    cursor: pointer;
}
form>div>input{
    width: 0;
    flex:1;
    height:80%;
    border:0;
    border-radius:5px;
    outline: none;
}
form>input[type=button]{
    width: 100%;
    height:3rem;
    background-color: rgb(44, 48, 90);
    color:#fff;
    border-radius:30px;
    border:0;
    margin-bottom: 1rem;
}
form > span {
    display: flex;
    width:100%;
    height:3rem;
    justify-content: center;
    align-items: center;
    color: red;
    border-radius: 4px;
}