.banner-img
img(src="static/img/content/main/slide1.jpg", alt="Banner")
&-img
position relative
margin-bottom 20px
img
width 100%
&::after
content ''
position absolute
right 0
bottom -1px
width 45%
height 13%
background url('../img/content/main/triangle.png') no-repeat
background-size 100%