CODEWITHSUNDEEP
cssshadowbox-shadow
tillda
tillda

Reputation: 18690

How can I add a box-shadow on one side of an element?

I need to create a box-shadow on some block element, but only (for example) on its right side. The way I do it is to wrap the inner element with box-shadow into an outer one with padding-right and overflow:hidden; so the three other sides of the shadow are not visible.

Is there some better way to achieve this? Like box-shadow-right?

EDIT: My intentions are to create only the vertical part of the shadow. Exactly the same as what repeat-y of the rule background:url(shadow.png) 100% 0% repeat-y would do.

Upvotes: 553

Views: 589754

Answers (13)

Luke
Luke

Reputation: 5652

clip-path is now (2020) one of simplest ways to achieve box-shadows on specific sides of elements, especially when the required effect is a "clean cut" shadow at particular edges (which I believe was what the OP was originally looking for), like this:

.shadow-element {
    border: 1px solid #333;
    width: 100px;
    height: 100px;
    box-shadow: 0 0 15px rgba(0,0,0,0.75);
    clip-path: inset(0 -15px 0 0);
}
<div class="shadow-element"></div>

...as opposed to an attenuated/reduced/thinning shadow like this:

.shadow-element {
    border: 1px solid #333;
    width: 100px;
    height: 100px;
    box-shadow: 15px 0 15px -10px rgba(0,0,0,0.75);
}
<div class="shadow-element"></div>

Simply apply the following CSS to the element in question:

box-shadow: 0 0 Xpx [hex/rgba]; /* note 0 offset values */
clip-path: inset(Tpx Rpx Bpx Lpx);

Where:

  • Tpx sets the shadow visibility for the top edge
  • Rpx right
  • Bpx bottom
  • Lpx left

Enter a value of 0 for any edges where the shadow should be hidden and a negative value (the same as the box-shadow blur radius - Xpx) to any edges where the shadow should be displayed.

Upvotes: 180

ROOT
ROOT

Reputation: 11622

Here is a codepen to demonstrate for each side, or a working snippet:

.boxes {
  display: flex;
  flex-wrap: wrap;
}

.box {
  margin: 20px;
  border: 1px solid #ccc;
  font-family: Helvetica Neue, Arial, sans-serif;
  font-weight: 100;
  letter-spacing: 2px;
  color: #999;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
  padding: 40px;
  line-height: 1.4em;
}

.top {
  box-shadow: 0 -5px 5px -5px #333;
}

.right {
  box-shadow: 5px 0 5px -5px #333;
}

.bottom {
  box-shadow: 0 5px 5px -5px #333;
}

.left {
  box-shadow: -5px 0 5px -5px #333;
}
<div class="boxes">
  <div class="box top">Top Only</div>
  <div class="box right">Right Only</div>
  <div class="box bottom">Bottom Only</div>
  <div class="box left">Left Only</div>
</div>

Upvotes: 5

Kyle
Kyle

Reputation: 67244

Yes, you can use the shadow spread property of the box-shadow rule: 

.myDiv
{
  border: 1px solid #333;
  width: 100px;
  height: 100px;
  box-shadow: 10px 0 5px -2px #888;
}
<div class="myDiv"></div>

The fourth property there -2px is the shadow spread, you can use it to change the spread of the shadow, making it appear that the shadow is on one side only.

This also uses the shadow positioning rules 10px sends it to the right (horizontal offset) and 0px keeps it under the element (vertical offset.)

5px is the blur radius :)

Example for you here.

Upvotes: 661

alex
alex

Reputation: 331

Ok, here is one try more. Using pseudo elements and aplying the shadow-box porperty over them.

html:

<div class="no-relevant-box">
  <div class="div-to-shadow-1"></div>
  <div class="div-to-shadow-2"></div>
</div>

sass:

.div-to-shadow-1, .div-to-shadow-2
  height: 150px
  width: 150px
  overflow: hidden
  transition: all 0.3s ease-in-out
  &::after
    display: block
    content: ''
    position: relative
    top: 0
    left: 100%
    height: 100%
    width: 10px
    border: 1px solid mediumeagreen
    box-shadow:  0px 7px 12px rgba(0,0,0,0.3)
  &:hover
    border: 1px solid dodgerblue
    overflow: visible

https://codepen.io/alex3o0/pen/PrMyNQ

Upvotes: 0

Webpixstudio
Webpixstudio

Reputation: 155

Here is my example:

.box{
        
        width: 400px; 
        height: 80px; 
        background-color: #C9C; 
        text-align: center; 
        font: 20px normal Arial, Helvetica, sans-serif; 
        color: #fff; 
        padding: 100px 0 0 0;
        -webkit-box-shadow: 0 8px 6px -6px black;
           -moz-box-shadow: 0 8px 6px -6px black;
                box-shadow: 0 8px 6px -6px black;
    }
<div class="box">
</div>

Upvotes: 5

riegersn
riegersn

Reputation: 2849

Just use ::after or ::before pseudo element to add the shadow. Make it 1px and position it on whatever side you want. Below is example of top.

footer {
   margin-top: 50px;
   color: #fff;
   background-color: #009eff;
   text-align: center;
   line-height: 90px;
   position: relative;
}

footer::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    top: 0;
    left: 0;
    z-index: -1;
    box-shadow: 0px 0px 10px 1px rgba(0, 0, 0, 0.75);
}
<footer>top only box shadow</footer>

Upvotes: 16

user1187135
user1187135

Reputation:

Here's a little hack that I did.

<div id="element"><!--element that I want an one-sided inset shadow from the bottom--></div> 
<div class="one_side_shadow"></div>

1. Create a <div class="one_side_shadow"></div> right below the element that I want to create the one-side box shadow (in this case I want a one-sided inset shadow for id="element" coming from the bottom)

2. Then I created a regular box-shadow using a negative vertical offset to push the shadow upwards to one-side. 

`box-shadow: 0 -8px 20px 2px #DEDEE3;`

Upvotes: 4

jim_kastrin
jim_kastrin

Reputation: 5040

What I do is create a vertical block for the shadow, and place it next to where my block element should be. The two blocks are then wrapped into another block:

<div id="wrapper">
    <div id="shadow"></div>  
    <div id="content">CONTENT</div>  
</div>

<style>

div#wrapper {
  width:200px;
  height:258px;      
}

div#wrapper > div#shadow {
  display:inline-block;
  width:1px;
  height:100%;
  box-shadow: -3px 0px 5px 0px rgba(0,0,0,0.8)
}

div#wrapper > div#content {
  display:inline-block;
  height:100%;
  vertical-align:top;
}

</style>

jsFiddle example here.

Upvotes: 0

Jacek Kuzemczak
Jacek Kuzemczak

Reputation: 455

To get the clipped effect on up to two sides you can use pseudo elements with background gradients.

header::before, main::before, footer::before, header::after, main::after, footer::after {
    display:    block;
    content:    '';
    position:   absolute;
    width:      8px;
    height:     100%;
    top:        0px;
}

header::before, main::before, footer::before {
    left:       -8px;
    background: linear-gradient(to left, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0));
}

header::after, main::after, footer::after {
    right:      -8px;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0));
}

will add a nice shadow-like effect to the left and right of the elements that normally make up a document.

Upvotes: 28

Ashisha Nautiyal
Ashisha Nautiyal

Reputation: 1397

div {
 border: 1px solid #666;
    width: 50px;
    height: 50px;
    -webkit-box-shadow: inset 10px 0px 5px -1px #888 ;
}

Upvotes: 0

ter24
ter24

Reputation: 462

This site helped me: https://gist.github.com/ocean90/1268328 (Note that on that site the left and right are reversed as of the date of this post... but they work as expected). They are corrected in the code below.

<!DOCTYPE html>
<html>
    <head>
        <title>Box Shadow</title>

        <style>
            .box {
                height: 150px;
                width: 300px;
                margin: 20px;
                border: 1px solid #ccc;
            }

            .top {
                box-shadow: 0 -5px 5px -5px #333;
            }

            .right {
                box-shadow: 5px 0 5px -5px #333;
            }

            .bottom {
                box-shadow: 0 5px 5px -5px #333;
            }

            .left {
                box-shadow: -5px 0 5px -5px #333;
            }

            .all {
                box-shadow: 0 0 5px #333;
            }
        </style>
    </head>
    <body>
        <div class="box top"></div>
        <div class="box right"></div>
        <div class="box bottom"></div>
        <div class="box left"></div>
        <div class="box all"></div>
    </body>
</html>

Upvotes: 1

madhairsilence
madhairsilence

Reputation: 3880

This could be a simple way

border-right : 1px solid #ddd;
height:85px;    
box-shadow : 10px 0px 5px 1px #eaeaea;

Assign this to any div

Upvotes: 2

Puyol
Puyol

Reputation: 3109

My self-made solution which is easy to edit:

HTML: 

<div id="anti-shadow-div">
    <div id="shadow-div"></div>
</div>​

css: 

#shadow-div{
    margin-right:20px; /* Set to 0 if you don't want shadow at the right side */
    margin-left:0px; /* Set to 20px if you want shadow at the left side */
    margin-top:0px; /* Set to 20px if you want shadow at the top side */
    margin-bottom:0px; /* Set to 20px if you want shadow at the bottom side */
    box-shadow: 0px 0px 20px black; 
    height:100px;
    width:100px;
    background: red;
}

#anti-shadow-div{
    margin:20px;
    display:table;
    overflow:hidden;
}​

Demo:
http://jsfiddle.net/jDyQt/103

Upvotes: 37

Related Questions