How to handle alpha layer of images in css?-CodePudding

I was trying to make a image button.The images have alpha layer in them. The alpha layer is not blending properly and instead of transparency, I am getting a white background.

I don't know how to fix this. Please help. I want the image buttons to show the color of layer benath them rather than the white.

.footer-icon-list {
    display: flex;
    background-color: #0f1720;
    padding-top: 10px;
    padding-bottom: 10px;
    text-align: center;
    justify-content: space-evenly;

}

.Facebook-buttom{
    margin: auto;
    border: none;
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/facebook.png");
    background-size: 40px;
    height: 40px;
    width: 40px;
}

.Instagram-buttom{
    margin: auto;
    border: none;
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/instagram.png");
    background-size: 40px;
    height: 40px;
    width: 40px;
}

.Twitter-buttom{
    margin: auto;
    border: none;
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/twitter.png");
    background-size: 40px;
    height: 40px;
    width: 40px;
}

.Github-buttom{
    margin: auto;
    border: none;
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/github.png");
    background-size: 40px;
    height: 40px;
    width: 40px;
}

<div className="footer-icon-list">
  <span><button className="Facebook-buttom"></button></span>
  <span><button className="Instagram-buttom"></button></span>
  <span><button className="Twitter-buttom"></button></span>
  <span><button className="Github-buttom"></button></span>
</div>

This is how it looks. I want the white border to be transparent and show the underlaying background color.

CodePudding user response：

you put the image inside a <button>! <<this is the problem

the default behavior of a <button> is to be grey.

just add a inherit value to background-color css property

.footer-icon-list {
    --height: 40px;
    /* this is your background of the parent
    I suggest you to change it (grey on black don't have a good contrast) */
    background-color: #0f1720;
    /* this shortcut set the bottom and top with the 10px */
    padding: 10px 0;
    /* centering */
    display: flex;
    text-align: center;
    justify-content: space-evenly;
}

.footer-icon-list span button {
    margin: auto;
    border: none;
    background-size: 40px;
    height: 40px;
    width: 40px;
    /* the solution */
    background-color: inherit;
}


/* images */

.Facebook-buttom {
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/facebook.png");
}

.Instagram-buttom {
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/instagram.png");
}

.Twitter-buttom {
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/twitter.png");
}

.Github-buttom {
    background-image: url("https://raw.githubusercontent.com/AayushPokharel/ContentDeliveryRepo/master/github.png");
}

<div >
  <!-- 1 -->
  <span><button ></button></span>
  <!-- 2 -->
  <span><button ></button></span>
  <!-- 3 -->
  <span><button ></button></span>
  <!-- 4 -->
  <span><button ></button></span>
</div>