Border around a div with a triangle point at the bottom - html

Question

Is there a way to achieve this border in CSS? I've got one DIV with list of bullet points and I need to wrap it in a border like the image.

Answer 1

You can first create one element with border except border-bottom and then use :before and :after pseudo-elements to add triangle border at bottom.
div {
width: 200px;
height: 150px;
border: 1px solid black;
border-bottom: none;
position: relative;
background: white;
margin: 20px;
}
div:after, div:before {
content: '';
width: 0;
height: 0;
border-style: solid;
border-width: 50px 101px 0 101px;
border-color: black transparent transparent transparent;
top: 100%;
left: -1px;
position: absolute;
}
div:after {
border-color: white transparent transparent transparent;
top: calc(100% - 1px);
}
<div></div>

Answer 2

Have a look at this Fiddle
Basically add this css to a div:
#base {
background: red;
display: inline-block;
height: 55px;
margin-left: 20px;
margin-top: 55px;
position: relative;
width: 100px;
}
#base:after {
border-bottom: 35px solid red;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
content: "";
height: 0;
left: 0;
position: absolute;
top: 54px;
width: 0;
-ms-transform: rotate(180deg);
-webkit-transform: rotate(180deg);
transform: rotate(180deg);
}

Answer 3

try this one:
.down-arrow {
display: inline-block;
position: relative;
background: darkcyan;
padding: 15px 0;
width: 200px;
text-align: center;
}
.down-arrow:after {
content: '';
display: block;
position: absolute;
left: 0;
top: 100%;
width: 0;
height: 0;
border-top: 20px solid darkcyan;
border-right: 100px solid transparent;
border-bottom: 0 solid transparent;
border-left: 100px solid transparent;
}
DEMO HERE

Answer 4

Here is the code for the box:
.box {
background: #fff;
border: 1px solid #000;
display: inline-block;
height: 55px;
margin-left: 20px;
margin-top: 55px;
position: relative;
width: 100px;
}
.box:after {
border-top: 35px solid #fff;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
content: '';
height: 0;
left: 0;
position: absolute;
top: 55px;
width: 0;
}
.box:before {
border-top: 35px solid #000;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
content: '';
height: 0;
left: 0;
position: absolute;
top: 56px;
width: 0;
}
<div class="box">
</div>
I hope it helps