*{
    margin: 0;
    padding: 0;
}
.content{
    margin: 0 auto;
    padding: 40px;
}
.modal{
    display: none;
    height: 100vh;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1100;
}
.modal__bg{
    background: rgb(102,102,102);
    opacity: 0.3;
    height: 100vh;
    position: fixed;
    width: 100%;
    z-index: 1101;
    pointer-events: none;
}
.modal__content{
    background: #fff;
    width: 740px;
    height: 550px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 1102;
    box-shadow:         0 0 8px 8px rgba(0, 0, 0, 0.2);
    -webkit-box-shadow: 0 0 8px 8px rgba(0, 0, 0, 0.2);
    -moz-box-shadow:    0 0 8px 8px rgba(0, 0, 0, 0.2);
}

@media screen and (min-width: 0px) and (max-width: 600px) {
	.modal__content{
	    background: #fff;
	    width: calc(100vw - 40px) ;
	    height: 550px;
	    position: absolute;
	    top: 0;
	    bottom: 0;
	    left: 0;
	    right: 0;
	    margin: auto;
	    z-index: 1102;
	    box-shadow:         0 0 8px 8px rgba(0, 0, 0, 0.2);
	    -webkit-box-shadow: 0 0 8px 8px rgba(0, 0, 0, 0.2);
	    -moz-box-shadow:    0 0 8px 8px rgba(0, 0, 0, 0.2);
	}
}