html - Keyframe animation making image blurry -


i have elements background image. using keyframe animation grow elements on page load. elements becoming blurry , adjusting 5 seconds after grow. know fix this? below code , have tried:

https://jsfiddle.net/ozy4dpk0/

animation:

@keyframes animation {   0% { transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   4.2% { transform: matrix3d(2.099, 0, 0, 0, 0, 1.549, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   8.31% { transform: matrix3d(2.768, 0, 0, 0, 0, 1.884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   12.51% { transform: matrix3d(3.064, 0, 0, 0, 0, 2.032, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   16.62% { transform: matrix3d(3.127, 0, 0, 0, 0, 2.063, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   27.73% { transform: matrix3d(3.026, 0, 0, 0, 0, 2.013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   38.84% { transform: matrix3d(2.995, 0, 0, 0, 0, 1.997, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   61.06% { transform: matrix3d(3, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   83.28% { transform: matrix3d(3, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }   100% { transform: matrix3d(3, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); } }

css:

#two-box {   background-image: url("your-brand-here.jpg");   -webkit-transform: translate3d(0,0,0);   transform: translate3d(0,0,0);   background-size: 100% 100%;   image-rendering: -webkit-optimize-contrast;   border-style: solid;   border-width: 2px;   border-color: #7f8c8d; }

html:

<div id="two-box" class="first-row-styles animation-target"></div>

try adding this:

-webkit-backface-visibility: hidden; -webkit-transform: translatez(0) scale(1.0, 1.0);

-

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