body{
    height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
    justify-content: center;
}

#mybody{
    /* background: linear-gradient(rgba(0,75,147,0.45),rgba(0,75,147,0.45)), */
    background: linear-gradient(rgba(255,255,255,0.45),rgba(255,255,255,0.45)),url("../../res/img/plane2.jpg") 50% no-repeat;
}

.sign{
    width: 100%;
    max-width: 420px;
    padding: 50px;
    margin: auto;
    background-color: rgba(0, 75, 147, 0.4);
    border-radius: 15px;
    box-shadow: 0 0 6px 0 rgba(0,0,0,0.3);
}

.sign .form-control{
    position: relative;
    box-sizing: border-box;
    height: auto;
    padding: 10px;
    font-size: 16px;
    border-radius: 15px;
}
.sign .control-label{
    color: #f3f3f3;
    font-weight: lighter;
}

.checkbox input[type="button"]{
    font-weight: bold;
    color: #fff;
}

.sign input[type="email"]{
    margin-bottom: -1px;
}

.sign input[type="password"]{
    margin-bottom: 15px;
    margin-top: 15px;
}

.myimg{
    height: auto;
    width: 340px;
}

@media(max-width:421px){
    .myimg{
        height: auto;
        width: 100%;
        min-width: 230px;
    }

}

.sign input[type="submit"]{
    font-size: 12px;
    margin-top: 20px;
    padding: 13px 0;
    background: #004b93;
    border-color: #004b93;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 4px;
    border-radius: 15px;
    transition: 0.4s;
}

.sign input[type="submit"]:hover{
    font-size: 12px;
    background: #d4dadf;
    border-color: #d4dadf;
    color: #4780af;
    letter-spacing: 4px;

}

.content-flag{
    text-align: center;
}