.linear{background:-webkit-radial-gradient(center bottom,ellipse farthest-side,rgba(0,0,0,.2),transparent 100%);background:-moz-radial-gradient(center bottom,ellipse farthest-side,rgba(0,0,0,.2),transparent 100%);background:-o-radial-gradient(center bottom,ellipse farthest-side,rgba(0,0,0,.2),transparent 100%);background:-ms-radial-gradient(center bottom,ellipse farthest-side,rgba(0,0,0,.2),transparent 100%);background:radial-gradient(center bottom,ellipse farthest-side,rgba(0,0,0,.2),transparent 100%);height:2px;text-align:center;margin:20px auto}.nightmode .linear{background:-webkit-radial-gradient(center bottom,ellipse farthest-side,rgba(255,255,255,.2),transparent 100%);background:-moz-radial-gradient(center bottom,ellipse farthest-side,rgba(255,255,255,.2),transparent 100%);background:-o-radial-gradient(center bottom,ellipse farthest-side,rgba(255,255,255,.2),transparent 100%);background:-ms-radial-gradient(center bottom,ellipse farthest-side,rgba(255,255,255,.2),transparent 100%);background:radial-gradient(center bottom,ellipse farthest-side,rgba(255,255,255,.2),transparent 100%)}