Desing Border css Left Bottom css Code - css

Question

I was wondering if its possible to create this shape using css. (or svg?)
The feed is dynamicly created so the news feeds need to scroll inside this contianer.
I got stuck after create a container with scrolling:
.container {
width: 300px;
height: 500px;
background-color: blue;
border-radius: 15px;
overflow-x: scroll;
}
.container a {
display: inline-block;
width: 100%;
height: 60px;
border-bottom: 5px solid rgba(255, 255, 255, 0.5);
}
.container .icon {
display: inline-block;
width: 50px;
height: 100%;
text-indent: 25px;
color: white;
font-weight: bold;
line-height: 50px;
}
<div class="container">
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
<a><div class="icon">F</div>Text goes in here</a>
</div>

Answer 1

There are many approaches to creating the shape and design you are looking for. Whilst SVG may be a great option here, a pure CSS solution may be possible through the use of the CSS border hack. A very rough demo of this would be something like:
.area {
height: 300px;
width: 200px;
background: lightgray;
position: relative;
margin: 50px;
}
.area:before {
content: "";
top: -20px;
left: -20px;
position: absolute;
height: 0;
width: 100%;
border-right: 20px solid transparent;
border-left: 20px solid transparent;
border-bottom: 20px solid lightgray;
}
.area:after {
content: "";
position: absolute;
height: 20%;
width: 0;
left: -20px;
top: -20px;
left: -20px;
border-right: 20px solid lightgray;
border-top: 20px solid transparent;
border-bottom: 20px solid transparent;
}
.areainner {
position: absolute;
height: 100%;
width: 100%;
top: 0;
left: 0;
}
.areainner:before {
content: "";
position: absolute;
bottom: -20px;
left: -20px;
height: 50%;
width: 0;
border-right: 20px solid lightgray;
border-top: 20px solid transparent;
border-bottom: 20px solid transparent;
}
.areainner:after {
content: "";
position: absolute;
bottom: -20px;
left: -20px;
height: 0;
width: 60%;
border-right: 20px solid transparent;
border-left: 20px solid transparent;
border-top: 20px solid lightgray;
}
.last {
position: absolute;
top: -20px;
left: 100%;
width: 0;
height: calc(100% - 20px);
border-left: 20px solid lightgray;
border-top: 20px solid transparent;
border-bottom: 20px solid transparent;
}
.YOURTEXT {
position: absolute;
height: 100%;
width: calc(100% -10px);
top: 0;
left: 0;
overflow-y: auto;
padding-left:10px;
}
<div class="area">
<div class="areainner">
<span class="last"></span>
<div class="YOURTEXT">
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vel, hendrerit ante. Cras lobortis vehicula nisl eu lacinia. Integer eu faucibus sapien. In hendrerit odio ac blandit placerat. Morbi suscipit faucibus magna, nec semper sapien efficitur in. Duis metus neque, consequat at sem eu, tempor lobortis
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in arcu. Vivamus sed dolor vel ipsum lacinia rhoncus. Integer et odio porttitor, vulputate turpis sed, cursus nibh. Suspendisse ac mi fermentum, fringilla lorem ac, imperdiet neque. Aliquam erat volutpat. Sed ac urna urna. Fusce felis massa, interdum
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arcu nibh. Pellentesque id faucibus purus. Nullam sit amet tortor non nibh dignissim fringilla. Donec varius, leo id bibendum fringilla, arcu nunc cursus ipsum, gravida laoreet arcu eros non erat. Donec viverra accumsan turpis, et convallis libero
congue maximus. Fusce nec placerat ipsum
</div>
</div>
</div>