#login_content {
    float: left;
    width: 740px;
    position: relative;
    font-family: kalpurush;
}
#main_header {
    background: #12cfb0!important;
    text-align: center;
    margin-top: 10px;
    padding: 7px 0;
    height: 70px;
}
#main_header h3, p{
    text-align: center;
    color: #fff;
    padding-top: 10px;
}
.btn-primary{
    background-color: #12cfb0!important;
    border-color: #12cfb0;
}
input:placeholder{
    font-style: italic;
    color: aliceblue;
}
#wrapper {
    width: 740px;
    margin: 0 auto;
}
#login_content fieldset{
    border: 2px solid #AAA5A2;
    padding: 20px 50px 30px 50px;
}
.form-control{
    float: right;
    width: 65%;
    height: 38px;
}
.form-group{
    display: inline-block;
    width:100%;
}
.form-group label{
    float: left;
    width: 35%;
    text-align:right;
    padding-right: 15px;
}
legend{
    width:auto;
    text-align:center;
}
@media only screen and (max-width:328px){
    #wrapper{
        width: 320px!important;
    }
    #login_content{
        width:100%;
    }
}
@media only screen and (max-width:755px){
    #wrapper{
        width: 480px!important;
    }
    #login_content{
        width:100%;
    }
}
@media only screen and (max-width:478px){
    #wrapper{
        width: 350px!important;
    }
    #login_content{
        width:100%;
    }
}