You can see a white border https://www.bdevg.com. See the border on the left side, it is not on the right side.
To create the wave animation I used a background image(bottom wave of top section)
and it has a background color.
The whole section has the following style.
paddingTop:"30px",
position: 'relative',
width: '100%',
height: '60vh',
background: '#556cd6', //#3544ff, #35aaff
overflow: 'hidden',
margin:"0px"
wave section has the following style
height:"100px",
width:"100%",
position:"absolute",
bottom:"0",
left:"0",
overflow:"hidden",
backgroundImage:`url(/images/layout/wave.png)`,
backgroundSize:"1000px 100px"
I tried to check padding or margin applied by other siblings and parent elements. But, i didn't found any way to fix it.
When you click on your navigation bar(expand the burger first) and inspect, it has a border-right property set
.MuiDrawer-paperAnchorDockedLeft {
border-right: 1px solid rgba(0, 0, 0, 0.12); }
Simply remove that property and the white border will vanish.