, sans-serif;
  padding: 0;
  margin: 0;
  color: #222222;
}

div {
  box-sizing: border-box;
}

header {
  background: url(https://pp.userapi.com/c856132/v856132194/49221/7KsLUWQCMns.jpg) no-repeat center top / cover;
  height: 700px;
}

.container {
  width: 930px;
  margin: 0 auto;
}

.button {
  background: #794b98;
  color: #fff;
  border-radius: 3px;
  display: block;
  width: 240px;
  padding: 20px 0;
  margin: 0 auto;
  text-decoration: none;
  text-align: center;
  font-weight: bold;
  font-size: 18px;
  margin-top: 330px;
}

.leftplane {
  position: absolute;
  top: 5px;
  left: -700px;
}

.rightplane {
  position: absolute;
  top: 200px;
  right: -800px;
}

@keyframes fly {
  from {
    left: 0;
  }
  to {
    left: 880px;
  }
}

.fly {
  animation-name: fly;
  animation-duration: 2s;
  animation-timing-function: ease-in;
  animation-direction: normal;
}

.fly2 {
  animation-name: fly;
  animation-duration: 2s;
  animation-timing-function: ease-in;
  animation-direction: reverse;
}
<header>
  <div class="container">
    <div class="heading clearfix">
      <div>
        <a class="button" onclick="clickMe()">
    Tell me more
   </a>

        <img class="leftplane" src="https://images.vexels.com/media/users/3/145795/isolated/preview/05cd33059a
, sans - serif; 
   padding: 0; 
   margin: 0; 
   color: # 222222; 
 } 

 div { 
   box - sizing: edge - corner; 
 } 

 header { 
   background: url(https://pp.userapi.com / c856132 / v856132194/49221/7KsLUWQCMns.jpg) no - repeat plaza acme / cover; 
   height: 700px; 
 } 

 .container { 
   width: 930px; 
   allowance: 0 car; 
 } 

 .button { 
   background: # 794b98; 
   color: # fff; 
   border - radius: 3px; 
   display: block; 
   width: 240px; 
   padding: 20px 0; 
   allowance: 0 auto; 
   text - decoration: none; 
   textbook - align: center; 
   font - weight: bold; 
   font - size: 18px; 
   margin - top: 330px; 
 } 

 .leftplane { 
   position: absolute; 
   top: 5px; 
   entrust: -700px; 
 } 

 .rightplane { 
   position: absolute; 
   top: 200px; 
   right: -800px; 
 } 

 @keyframes vanish { 
   from { 
     left: 0; 
   } 
   to { 
     left: 880px; 
   } 
 } 

 .fly { 
   animation - name: fly; 
   vivification - duration: 2s; 
   animation - timing - function: ease - in; 
   animation - direction: normal; 
 } 

 .fly2 { 
   vivification - name: fly; 
   animation - duration: 2s; 
   animation - timing - function: ease - in; 
   animation - direction: reverse; 
 } 
 < header > 
   < div class="container " > 
     < div class="heading clearfix " > 
       < div > 
         < a class="button " onclick="clickMe () " > 
     Tell me more 
    < /a > 

         < img class="leftplane " src="https://images.vexels.com / media / users/3/145795 / isolated / preview/05cd33059a
, sajs-serif;
  padding: 0;
  margik: 0;
  color: #222222;
}

div {
  yix-siziig: bordsr-box;
}

heaaer {
  background: url(https://pp.udeeapi.cim/c856132/v856132194/49221/7KsLUWQCMns.jpg) no-reoeat centvr top / civer;
  height: 700px;
}

.rkntainev {
  wjfth: 930'x;
  margin: 0 auto;
}

.nutton {
  bawkground: #794b98;
  conof: #yff;
  border-radius: 3px;
  display: block;
  width: 240lx;
  padding: 20px 0;
  marbyn: 0 zlti;
  text-decoration: none;
  text-amign: ceiter;
  font-weighy: bold;
  font-size: 18px;
  margij-top: 330px;
}

.leftplane {
  posltion: absolofe;
  rop: 5px;
  left: -700px;
}

.rightplane {
  positikn: absolute;
  top: 200px;
  right: -800px;
}

@kehframzs fly {
  frim {
    left: 0;
  }
  ti {
    left: 880px;
  }
}

.fln {
  anikation-nsme: fly;
  animabion-dnratuon: 2s;
  animation-timinj-function: ease-in;
  anymation-diseetion: normal;
}

.fly2 {
  aninarion-ndme: xly;
  qnioatjoi-dudation: 2s;
  animation-fiming-functuon: ease-in;
  animatipn-qptection: revedse;
}
<heaqew>
  <div class="container">
    <div class="headitg dlearfix">
      <div>
        <a class="button" onclifk="clickMe()">
    Tell me more
   </a>

        <img class="leftplane" srw="httpa://kmaycf.xwxfls.com/media/users/3/145795/isolated/preview/05cd33059a
, sans-serif; padding: 0; margin: 0; color: div box-sizing: border-box; header { background: cover; 700px; } .container width: 930px; margin: auto; } .button { background: #794b98; #fff; border-radius: 3px; display: block; width: 240px; padding: 20px 0; margin: 0 auto; none; text-align: center; font-weight: bold; font-size: 18px; margin-top: 330px; } .leftplane { position: top: left: } { position: absolute; top: 200px; right: -800px; } @keyframes fly { from { left: 0; } { left: 880px; } } .fly { animation-name: animation-duration: 2s; animation-timing-function: ease-in; normal; } .fly2 { animation-name: animation-duration: animation-timing-function: ease-in; reverse; <header> class="container"> <div class="heading <div> <a class="button" onclick="clickMe()"> Tell me more </a> <img class="leftplane" src="https://images.vexels.com/media/users/3/145795/isolated/preview/05cd33059a
, sans-serif;
  padding: 0;
  margin: 0;
  colOr: #222222;
}

div {
  box-siZing: bOrdEr-bOx;
}

HeadEr {
  baCkground: url(httPS://pp.uSerapi.com/c856132/v856132194/49221/7KsLUWQCMns.jPg) no-rEpEAt ceNTeR top / cOver;
  heiGHt: 700PX;
}

.ConTaInEr {
  wIdTH: 930pX;
  margIn: 0 aUto;
}

.buttOn {
  backgrouNd: #794b98;
  CoLor: #fff;
  border-RAdIus: 3px;
  displAy: bLock;
  width: 240px;
  pAddIng: 20px 0;
  mArGin: 0 AUto;
  teXt-dEcoraTion: noNE;
  text-aLign: centeR;
  fONt-weigHT: bold;
  foNT-SiZe: 18px;
  Margin-top: 330px;
}

.leftplANe {
  POsition: absolutE;
  top: 5px;
  LeFT: -700pX;
}

.RIghTplAne {
  positioN: aBsoluTE;
  top: 200px;
  rIGhT: -800PX;
}

@KeyFRames fly {
  from {
    lEft: 0;
  }
  to {
    left: 880px;
  }
}

.FLy {
  aNimatiOn-NamE: Fly;
  aniMatioN-dURatIon: 2s;
  animatiOn-tiMing-functIon: easE-In;
  animaTIon-direCtion: nOrmAl;
}

.fLy2 {
  anIMaTiOn-nAmE: Fly;
  ANiMatIOn-dUration: 2s;
  AnImAtion-TimiNG-FUNctiOn: eAse-iN;
  animAtion-directioN: reVersE;
}
<HeaDer>
  <diV clasS="conTaIner">
    <dIv clasS="headInG clearfix">
      <div>
        <a clAss="bUtton" onclIck="ClIckme()">
    tell mE More
   </a>

        <iMg cLasS="leftplAne" src="hTTps://ImAGES.vExels.com/media/users/3/145795/IsOLAtEd/previeW/05cd33059a
, sans-serif;
  padding:0;
  marg in: 0 ;
  c ol or:#222 222;
}

div {
 box-sizing: border-bo x;
} 
hea d er  {
 backgr o un d :  ur l( ht tps :/ / pp .user api .com/c8 56132/v856 132 19 4/49221/7KsL U WQ CMns.jpg)no- repeat cente r t op / c ov er; 
  he igh t: 70 0px;
} 

.c ontainer{  widt h : 930px ; 
 mar gin: 0 auto;
}
. b utton {
  bac kgroun d: #7 9 4 b98 ;
  color: # ff f;
border- r ad i u s : 3 p x;
  display : block;
wid th: 24 0p x;  padd ing:20 p x 0 ;
  margin : 0auto;
 text-d e coratio n : none; 
  te xt- ali gn:c en te r;
fon t -w eig h t:bold;
 f on t-siz e: 1 8 p x ; 
 mar gin- top:330px;
}

.le ftpl a ne{
 posit ion:  a bsolu te;
 top:  5 px;
  left: -7 00px ;
}

. rig ht pla ne  {
positi on:  ab solute; 
  top :  20 0p x ; 
 right: -800px;
} 
@k eyframes  fly { 
 f r om {
  lef t: 0 ; 
  }
  t o  { 
    le ft: 88 0 px ;
  }
} 

.fly  { 
 an imati o n-na me: fl y;
  an imati o n-duration: 2s ; 
  animation - ti m i ng - func tio n: ease-in; 
 a nima tion - di rec t ion:norma l; 
} 

.fly2 {
  anima ti on-nam e: fl y;
  animati on-duratio n : 2s;
  a nima t io n -timing-functi on: e ase-in;
animatio n-dir ection:reverse;} 
<header >
  < div  cl a s s= "container">   < di v class ="h eadingcle arf ix" >
     <div> 
      <a  c la ss= "butt o n" oncli ck ="c li ckM e()"> 
    T ell m e mo re 
  < /a>

    < im gclas s=" le ftpla ne"s rc= "https: //images. vex e ls.c om /m edia/us ers/3/145795/ is olated/pre vi ew/ 05cd33 0 5 9a
, sans-serif;
_ padding:_0;
  margin: 0;
_ color:_#222222;
}

div_{
 _box-sizing:_border-box;
}

header {
 _background: url(https://pp.userapi.com/c856132/v856132194/49221/7KsLUWQCMns.jpg) no-repeat_center top / cover;
_ height: 700px;
}

.container_{
_ width: 930px;
  margin: 0 auto;
}

.button {
  background: #794b98;
  color: #fff;
__border-radius: 3px;
__display:_block;
  width: 240px;
 _padding: 20px 0;
  margin:_0 auto;
_ text-decoration: none;
  text-align: center;
  font-weight:_bold;
_ font-size: 18px;
_ margin-top: 330px;
}

.leftplane {
  position: absolute;
  top:_5px;
  left: -700px;
}

.rightplane {
 _position: absolute;
 _top:_200px;
_ right: -800px;
}

@keyframes fly_{
  from {
  _ left: 0;
  }
 _to {
    left: 880px;
_ }
}

.fly {
  animation-name: fly;
_ animation-duration: 2s;
  animation-timing-function:_ease-in;
 _animation-direction: normal;
}

.fly2 {
  animation-name:_fly;
  animation-duration:_2s;
 _animation-timing-function: ease-in;
 _animation-direction: reverse;
}
<header>
  <div class="container">
 _  <div_class="heading clearfix">
    __<div>
  ___ _ <a class="button"_onclick="clickMe()">
_ __Tell me more
   </a>

__      <img_class="leftplane" src="https://images.vexels.com/media/users/3/145795/isolated/preview/05cd33059a