Examples
vue
<template>
<b-img
object-fit="contain"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit contain"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20contain%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="cover"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit cover"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20cover%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="fill"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit fill"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20fill%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="scale"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit scale down"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20scale%20down%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="none"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit none"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20none%3C/text%3E%3C/svg%3E"
/>
</template>
Responsive
vue
<template>
<b-img
object-fit="sm-contain"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit contain"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20contain%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="md-contain"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit cover"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20cover%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="lg-contain"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit fill"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20fill%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="xl-contain"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit scale down"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20scale%20down%3C/text%3E%3C/svg%3E"
/>
<b-img
object-fit="xxl-contain"
border
rounded
class="bd-placeholder-img"
alt="Placeholder : Object fit none"
width="140"
height="120"
src="data:image/svg+xml,%3Csvg%20style='font-size:%201.125rem;%20font-family:system-ui,-apple-system,%22Segoe%20UI%22,Roboto,%22Helvetica%20Neue%22,%22Noto%20Sans%22,%22Liberation%20Sans%22,Arial,sans-serif,%22Apple%20Color%20Emoji%22,%22Segoe%20UI%20Emoji%22,%22Segoe%20UI%20Symbol%22,%22Noto%20Color%20Emoji%22;%20-webkit-user-select:%20none;%20-moz-user-select:%20none;%20user-select:%20none;%20text-anchor:%20middle;'%20width='200'%20height='200'%20xmlns='http://www.w3.org/2000/svg'%3E%3Ctitle%3EPlaceholder%3C/title%3E%3Crect%20width='100%25'%20height='100%25'%20fill='%23dee2e6'%3E%3C/rect%3E%3Ctext%20x='50%25'%20y='50%25'%20fill='%23868e96'%20dy='.3em'%3EObject%20fit%20none%3C/text%3E%3C/svg%3E"
/>
</template>