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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

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="main-ctr">
  <div class="dialog-wrapper">
    <button class="open">Open Dialog</button>
    <button class="close">X</button>
    <p>Hello, it's a me!<br>Mariooooo!</p>
    <svg width="369" height="249" viewBox="0 0 369 249" xmlns="http://www.w3.org/2000/svg">
      <g id="Page-1" fill="none" fill-rule="evenodd">
        <path d="M264.483 102v45h-160v-45h160z" id="step-0" fill="#FFF"/>
        <path d="M264.483 102v45h-160L-.004-.025 264.483 102z" id="step-1" fill-opacity=".1" fill="#D8D8D8"/>
        <path d="M369.02-.025L264.484 147h-160L-.004-.025H369.02z" id="step-2" fill-opacity=".2" fill="#D8D8D8"/>
        <path d="M369.01-.025L264.482 147-.004 249V-.024H369.01z" id="step-3" fill-opacity=".3" fill="#D8D8D8"/>
        <path d="M.042-.004h368.97v249H-.003l.045-249z" id="step-4" fill-opacity=".4" fill="#D8D8D8"/>
        <path d="M264.483 102v45h-160v-45h160z" id="box" fill="#FFF"/>
      </g>
    </svg>
  </div>
</div>
!

CSS 

              
                @import "bourbon";
@import url(https://fonts.googleapis.com/css?family=Roboto:400,300);

html,
body {
  display: table;
  width: 100%;
  height: 100%;
  background: -webkit-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* Chrome 10+, Saf5.1+ */
  background:    -moz-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* FF3.6+ */
  background:     -ms-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* IE10 */
  background:      -o-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* Opera 11.10+ */
  background:         linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* W3C */
}

button:focus {
  outline: none;
}

.main-ctr {
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}

.dialog-wrapper {
  position: relative;
  display: inline-block;
  height: 249px;
  width: 369px;
  
  p {
    position: absolute;
    top: 50%;
    margin-top: -24px;
    left: 0;
    right: 0;
    text-align: center;
    line-height: 1.5;
    font-family: "roboto";
    padding: 0 20px;
    box-sizing: border-box;
    font-weight: 300;
    opacity: 0;
    color: #999;
    transition: .45s all ease;
    pointer-events: none;
    letter-spacing: 1.5px;
    
    &.show {
      opacity: 1;
    }
  }
  
  .open {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 160px;
    height: 45px;
    margin-top: -22.5px;
    margin-left: -80.5px;
    border: none;
    background: white;
    font-size: 14px;
    color: black;
    cursor: pointer;
    transition: .3s all ease;
    letter-spacing: 1.5px;
    
    &.off {
      pointer-events: none;
      opacity: 0;
    }
  }
  
  .close {
    position: absolute;
    top: 25px;
    right: 25px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: -webkit-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* Chrome 10+, Saf5.1+ */
    background:    -moz-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* FF3.6+ */
    background:     -ms-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* IE10 */
    background:      -o-linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* Opera 11.10+ */
    background:         linear-gradient(90deg, #1CD8D2 10%, #93EDC7 90%); /* W3C */
    color: white;
    font-size: 16px;
    /* box-shadow: 0 1px 6px rgba(0,0,0,0.2); */
    cursor: pointer;
  }
  
  svg {
    
    #step-0,
    #step-1,
    #step-2,
    #step-3,
    #step-4 {
      visibility: hidden;
    }
  }
}
!

JS 

              
                var box = $("#box"),
    open = $(".open"),
    close = $(".close"),
    text = $("p"),
    step0 = "#step-0",
    step1 = "#step-1",
    step2 = "#step-2",
    step3 = "#step-3",
    step4 = "#step-4";

TweenMax.set(close, {
  scale: 0,
  transformOrigin: "center center"
});

var tl = new TimelineMax({
});

open.on("click", function(){

  $(this).addClass("off");

  tl
  .to(box, .2, {
    morphSVG:{
      shape: step1
    },
    delay: .3,
    ease: Power4.easeOut
  })
  .to(box, .2, {
    morphSVG:{
      shape: step2
    },
    ease: Power4.easeOut
  })
  .to(box, .2, {
    morphSVG:{
      shape: step3
    },
    ease: Power4.easeOut
  })
  .to(box, .2, {
    morphSVG:{
      shape: step4
    },
    ease: Power4.easeOut
  })
  .set(text, {className:"+=show"})
  
  .to(close, .3, {
    scale: 1,
    delay: .3,
    ease: Bounce.easeOut
  })

});

close.on("click", function(){

  tl
  .to(close, .3, {
    scale: 0,
    ease: Power4.easeOut
  })
  .set(text, {className:"-=show"})
  .to(box, .2, {
    morphSVG:{
      shape: step3
    },
    delay: .3,
    ease: Power4.easeOut
  })
  .to(box, .2, {
    morphSVG:{
      shape: step2
    },
    ease: Power4.easeOut
  })
  .to(box, .2, {
    morphSVG:{
      shape: step1
    },
    ease: Power4.easeOut
  })
  .to(box, .2, {
    morphSVG:{
      shape: step0
    },
    ease: Power4.easeOut
  })

  .set(open, {className:"-=off"});

})
!
999px

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