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HTML

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Adding Classes

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About the <head>

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Insecure Resource

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <main>
  <transition name="button">
    <button @click="toggleModal()" v-show="!showModal"><i class="fa fa-2x fa-id-card-o"></i></button>
  </transition>
  
    <!--  The Modal -->
  <modal v-if="showModal" :flip-me="flipMe" @toggle="toggleModal()">
    <div slot="front-header">
      <b>Gimme the Keys</b>
    </div>
    <div slot="front-body">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur quia totam velit amet porro libero ab blanditiis fugiat repudiandae, aperiam, quod ut odit cumque eos modi doloremque laborum delectus commodi!
    </div>
    <div slot="front-footer">
      <button @click="flipModal()"><i class="fa fa-arrow-right"></i></button>
<!--       <button @click="toggleModal()">Done</button> -->
    </div>
    <div slot="back-header">
      <b>Flip You Fo Real!</b>
    </div>
    <div slot="back-body">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit. Reiciendis necessitatibus cumque, quaerat sunt, aliquam, officia ut delectus explicabo laborum distinctio totam tempore debitis. Error odio quidem cupiditate, harum, similique laboriosam.
    </div>
    <div slot="back-footer">
      <button @click="toggleModal()">Done</button>
      <button @click="flipModal()"><i class="fa fa-arrow-left"></i></button>
    </div>
  </modal>

</main>
!

CSS 

              
                :root {
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  &__wrapper {
    position: relative;
    width: 65vmin;
    height: 35vmin;
    min-height: 15em;
    min-width: 20em;
    display: flex;
  }
  &__container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #fff;
    color: #333;
    border-radius: .2em;
    box-shadow: 0 0 0 1px rgba(0,0,0,.2), 0 1em 2em -1em;
  }
  &__header {
    flex: none;
    display: flex;
    justify-content: space-between;
    padding: 1em;
  }
  &__body {
    flex: 1;
    padding: 1em;
    overflow: auto;
  }
  &__footer {
    flex: none;
    padding: 1em;
    > * {
      flex-direction: row-reverse;
      display: flex;
      justify-content: space-between;
    }
  }
  &__x {
    cursor: pointer;
    font-size: 2em;
    line-height: .5;
  }
}

.button-leave-active,
.modal-enter-active {
  transition: transform 500ms cubic-bezier(1, 0, 0.2, 1.5);
}
.modal-leave-active,
.button-enter-active {
  transition: transform 500ms cubic-bezier(1, -0.5, 0.2, 1);
}

.mask-enter-active, .mask-leave-active {
  transition: opacity 300ms linear;
}
.mask-enter, .mask-leave-to {
  opacity: 0;
}

.button-enter, .button-leave-to,
.modal-enter, .modal-leave-to {
  transform: scale(0);
}


// flipper
.flip-container {
  perspective: 900;
  &.flip-me .flipper {
    transform: rotateY(-180deg);
  }
}
.flipper {
  will-change: transform;
  transition: transform 1000ms cubic-bezier(1, -0.2, 0.2, 1.2);
  transform-style: preserve-3d;
  position: relative;
  transform: rotateY(0);
  .front,
  .back {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
  .front {
    transform: rotateY(0deg);
  }
  .back {
    transform: rotateY(-180deg);
  }
}

// boring
[v-cloak] {
  display: none !important;
}

*, *::before, *::after {box-sizing: border-box;}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: sans-serif;
  background: #21c2f5; //#9ccf5e;
  color: #fff;
}

button {
  border: none;
  box-shadow: 0 0 0 2px rgba(0,0,0,.2) inset;
  padding: .7em 1em;
  border-radius: .35em;
  color: #fff;
  font: inherit;
  background: #333;
  cursor: pointer;
  outline: none;
  will-change: transform;
  transition: transform .2s ease-out;
  &:active {
    transform: scale(.9);
  }
}
!

JS 

              
                Vue.component('modal', {
  template: `
    <transition name="modal">
      <div class="modal flip-container" :class="{'flip-me': flipMe}">
        <div class="modal__wrapper flipper">
          <div class="modal__container front">
            <div class="modal__header">
              <slot name="front-header"></slot>
              <div class="modal__x" @click="$emit('toggle')">&times;</div>
            </div>
            <div class="modal__body">
              <slot name="front-body"></slot>
            </div>
            <div class="modal__footer">
              <slot name="front-footer"></slot>
            </div>
          </div>
          <div class="modal__container back">
            <div class="modal__header">
              <slot name="back-header"></slot>
              <div class="modal__x" @click="$emit('toggle')">&times;</div>
            </div>
            <div class="modal__body">
              <slot name="back-body"></slot>
            </div>
            <div class="modal__footer">
              <slot name="back-footer"></slot>
            </div>
          </div>
        </div>
      </div>
    </transition>
  `,
  props: [
    'flipMe'
  ]
})

new Vue({
  el: 'main',
  data: {
    showModal: true,
    flipMe: false
  },
  methods: {
    toggleModal: function() {
      this.showModal = !this.showModal
    },
    flipModal: function() {
      this.flipMe = !this.flipMe
    }
  }
})
!
999px

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