how to create arrow down/up in css

Question

How can I create a arrow point down /up in css?

I tried to build it from div:

.triangle_down {
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 15px solid #2f2f2f;
    font-size: 0;
    line-height: 0;
    float: left;
}

This is the result:.

But i tried to build something like this:

Any suggestions?

Answer 1

My proposal is:

.triangle_down {
  width: 0;
  height: 0;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-top: 15px solid #2f2f2f;
  font-size: 0;
  line-height: 0;
  float: left;
}
.triangle_down1 {
  position: relative;
  top: -5px;
  content: "";
  display: inline-block;
  width: 15px;
  height: 15px;
  border-right: 0.2em solid black;
  border-top: 0.2em solid black;
  transform: rotate(135deg);
  margin-right: 0.5em;
  margin-left: 1.0em;
}
 .triangle_up1 {
   position: relative;
   top: -5px;
   content: "";
   display: inline-block;
   width: 15px;
   height: 15px;
   border-right: 0.2em solid black;
   border-top: 0.2em solid black;
   transform: rotate(-45deg);
   margin-right: 0.5em;
   margin-left: 1.0em;
 }

<div id="dialog1" class="triangle_down"></div>
<div id="dialog2" class="triangle_down1"></div>
<div id="dialog3" class="triangle_up1"></div>

Answer 2

#uparrow:before {
    content: '\276F';
}

#downarrow:before {
    content: '\276E';
}

#uparrow, #downarrow {
    font-size: 30px;
    display: inline-block;
    -ms-transform: rotate(90deg);
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
    padding: 10px;
}

<span id="uparrow"></span><span id="downarrow"></span>

You can include unicode characters like that, which are used by pretty much any system nowadays. Check out how it looks here: https://jsfiddle.net/mcdbu2pj/2/

Simply find the correct unicode characters you want. It won't matter which direction they're in, as you can just rotate them (like I did). Remember to set their display property to inline-block!

Answer 3

If you don't want to use icons you can use ::before and ::after pseudo-class.

This is one of the various way you can get an arrow in pure CSS.

HTML

<div class="arrow"></div>

CSS

.arrow {
  position: absolute;
  top: 20px;
  left: 20px;
}

.arrow::before,
.arrow::after {
  position: relative;
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: #000;
}

.arrow::before {
  transform: rotate(45deg);
}

.arrow::after {
  left: 14px;
  transform: rotate(-45deg);
}

You can find an example here: https://jsfiddle.net/f3qpujpL/2/

Answer 4

What you want is a chevron, not an arrow. Pure CSS solution:

.chevron::before {
    border-style: solid;
    border-width: 0.15em 0.15em 0 0;
    content: '';
    display: inline-block;
    height: 0.45em;
    left: 0.15em;
    top: 0.15em;
    vertical-align: top;
    width: 0.45em;
    transform: rotate(135deg);
}

Check out this JSFiddle