Rectangle Loading Back

Rectangle Loading, just a reusable component for loading animation

Properties

Usage

The whole code is contained in the following codepen demo, and what you need to do is to copy the code of JavaScript, and save it as a jsx file, which may need a loader to parse like Babel. Then, before the defined class Loading, just add a key word export so that you can import it elsewhere.

export class Loading extends React.Component {
    /** ... */
}

Then, you can use it by importing the component like:

import { Loading } from 'loading.jsx';

/** you can also use <Loading /> */
ReactDOM.render(
    <Loading></Loading>,
    document.querySelector('.container')
);

Styles

What styles the component needs is as followed:

.loading {
    font-size: 10px;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;

    -webkit-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;

    box-sizing: border-box;
}

.loading > div:nth-child(1) {
    /** IE shoule be greater than 2px to render */
    margin-left: 2px;
}

.loading > div {
    height: 100%;
    width: 3px;
    /** IE shoule be greater than 2px to render */
    margin-right: 2px;
    display: inline-block;
    -webkit-animation: stretchdelay 1.2s infinite ease-in-out;
    animation: stretchdelay 1.2s infinite ease-in-out;
}

.loading__hide {
    display: none;
    /*opacity: 0;*/
}

@-webkit-keyframes stretchdelay {
    0%,
    40%,
    100% {
        -webkit-transform: scaleY(0.4)
    }
    20% {
        -webkit-transform: scaleY(1.0)
    }
}

@keyframes stretchdelay {
    0%,
    40%,
    100% {
        transform: scaleY(0.4);
        -webkit-transform: scaleY(0.4);
    }
    20% {
        transform: scaleY(1.0);
        -webkit-transform: scaleY(1.0);
    }
}

Demo

See the Pen ENXXbo by aleen42 (@aleen42) on CodePen.