.content {
    max-width: 100%;
    margin: auto;
}

.wrapper {
    min-height: 300px;
    padding: 16px 0;
    position: relative;
}


.wrapper canvas {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}


@media (max-width: 660px) {
}

@media (max-width: 560px) {
}

@media (max-width: 420px) { 
    .wrapper {
        min-height: 250px;
    }	
}