Not sure if you found both answers yet but they are here in the responses.

Here they are together:

1.

 @media screen and (min-width: 480px) {
  #gallery li {
    width: 28.3333%; 
  }

2.

 @media screen and (min-width: 480px) {
  #gallery li {
    width: 28.3333%; 
  }
 #gallery li:nth-child(4n+4) {
    clear: left;
  }
}

First you need to declare the selector and then within the selector declare the change needed. The second one requires a starting child (the 4th one) and then adding 4 allows us to select the 4th one of each list.

Hope that helps,

In the 1 of 2 challenge, it's asked you the select the list item in id gallery and put the width = 28.3333% inside the media query on line 89. <br>

And the second challenge is asked you to clear the left side of the 4th list item in id gallery. It should use pseudo class nth-child() and it will be like this<br>

#gallery li:nth-child(4n) {
  clear: left;
}

First, add on line 93:

gallery li {

width:28.3333% }

them for the next task on the line immediately after the last bit of code add

gallery li:nth-child(4n+0){

clear:left;

}

Hi Domnick, you need a hash symbol before gallery!! It's an id. <br>

#gallery li {
  width: 28.3333%;
}

I fixed number one by myself, thanks for the help anyways guys.