* {
margin: 0;
padding: 0;
box-sizing: border-box;
}

html {
height: 100vh;
width: 100vw
}

body {
background: white;
color: slategrey;
height: 100%;
width: 100%;
font: normal 16px/1.3 arial;
overflow: hidden;
border: 1px solid lightgrey;
}
#svg-preview {
width: calc(100% - 40px);
height: calc(100% - 120px);
min-height: 400px;
background: white;
border: 1px solid #d3d3d3;
margin: 50px 20px 30px 20px;
overflow: hidden;
text-align: center;
}