How can I make css curved line? - css

Question

How can I make css like this as picture below:

Answer 1

Can be achieved using manipulating border radius
CSS
.graph {
height: 100px;
width: 200px;
background: transparent;
border-radius: 0px 0px 0px 370px/225px;
border: solid 5px grey;
border-top:none;
border-right:none;
margin:20px;
}
.graph:before {
height:20px;
width: 10px;
border: 5px solid grey;
border-radius: 30px 30px 0px 0px /75px 75px 0px 0px ;
display: block;
content: "";
border-bottom:none;
position:relative;
top: -9px;
left: -12px;
}
HTML
<div class = "graph"><div>
https://jsfiddle.net/u663m81s/

Answer 2

You could use a pseudo element for this:
div {
height: 300px;
width: 300px;
background: lightgray;
position: relative;
border-bottom: 5px solid black;
border-right: 5px solid black;
}
div:after {
content: "";
position: absolute;
height: 100%;
width: 100%;
border: 3px solid transparent;
border-bottom-color: black;
top: -5px;
left: 50%;
border-radius: 50%;
transform: rotate(45deg);
}
<div></div>
You could then play with the height and width properties of the pseudo element to 'stretch' the line. Please note: this may require small adjustments to the top and left properties for positioning

Answer 3

Change height as per requirement !
You can play with parameters to suit your needs !!
.box{
width:100px; height:80px;
border:solid 3px #000;
border-color:transparent transparent #000 #000;
border-radius: 0px 0px 0px 250px;
}
<div class="box"></div>

Answer 4

An arrow in css, from css-tricks.com/ShapesOfCSS
#curvedarrow {
position: relative;
width: 0;
height: 0;
border-top: 9px solid transparent;
border-right: 9px solid red;
-webkit-transform: rotate(10deg);
-moz-transform: rotate(10deg);
-ms-transform: rotate(10deg);
-o-transform: rotate(10deg);
}
#curvedarrow:after {
content: "";
position: absolute;
border: 0 solid transparent;
border-top: 3px solid red;
border-radius: 20px 0 0 0;
top: -12px;
left: -9px;
width: 12px;
height: 12px;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
}
<div id="curvedarrow"></div>
You can alternatively use SVG: http://codepen.io/gaelb/pen/mJePGM