coding...not sure why or how it got into foldeer on computer

_4oj7{align-items:center;display:flex;height:48px;line-height:12px}._4oj8{overflow:hidden}._4l80{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}._4l8k{color:#929598;overflow:hidden;padding-top:5px;text-overflow:ellipsis;white-space:nowrap}._60t-{display:inline-block;margin-left:8px} ._42re{overflow-y:auto}._5_1x{background-color:#fff;padding:10vh 0;text-align:center}._1nug{color:#c6c9cc;display:inline-block;font-size:12px;font-weight:bold;height:16px;line-height:16px}._5_76{margin-bottom:10px;width:400px}._1_uq{margin-left:5px;vertical-align:middle}._62m4{font-size:12px;font-weight:bold;margin-bottom:8px}._62m5{margin-bottom:8px}._5_is,._1-ho{margin:12px 52px 44px 0}._47im{border:3px solid #fff;border-radius:40px;left:106px;top:24px}._47in ._47im{display:inline-block;margin-right:8px}._47io{color:#4b4f56;display:inline-block;margin-top:10px;max-width:200px;vertical-align:middle}._47iw{font-size:16px;font-weight:bold;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;width:200px}._62p0{font-size:16px;font-weight:bold;margin-bottom:8px}._62p1{color:#fffff0}._1gi6{padding-left:8px} ._3on0 ._420b ._2ekr,._3on0 ._420b ._44sc,._3on0 ._420b ._420a{display:block}._3on0 ._420a{padding:3px 0}._3on0 ._2ekr{padding:3px 10px 5px 0;width:160px}._3on0 ._420b ._4209{box-sizing:border-box;color:#666;font-weight:bold;text-align:left;width:auto;word-wrap:break-word}._3on0 ._44sf{box-sizing:border-box;color:#c6c9cc;font-size:12px;word-wrap:break-word}._3on0 ._44sd{box-sizing:border-box;color:#666;font-size:14px;line-height:22px;word-wrap:break-word}._3on0 ._44sc{padding:14px 0;width:527px}._3on0 ._4kjn{display:inline-block}._20in{color:#4b4f56;display:inline-block;font-size:16px;font-weight:500;padding:16px;position:relative}._20im{border-bottom-color:#3b5998;border-bottom-style:solid;font-weight:bold}.__dj{margin:8px 18px}._4qtq{color:#4b4f56;font-size:16px;margin-left:30px}._2uyv{margin-right:18px}._1220{min-height:100px}._5a8u ._3xrd{padding:4px 0 0 18px} ._x62{width:184px} ._4a-m{margin-top:12px;position:relative}._4a-n{bottom:0;position:absolute;right:-20px}._4a-k,._eds{font-size:11px;font-weight:bold}._4a-k{color:#cbd3db;margin-left:4px}._4a-l{color:#fff;text-decoration:none}._4a-p{font-size:14px;line-height:20px}._4a-m ._4a-j,._4a-m ._4a-j._42fr:active{background:transparent;border-color:#fff;color:#fff;margin-right:4px;min-width:48px;text-shadow:none} ._2um5{display:block}._y1l{color:#1d2129;display:block;font-size:24px;line-height:28px;margin-bottom:20px}._424x{margin:auto;text-align:center;width:450px}._8s2{padding:10px 12px;text-align:right}._424z{color:#1d2129;display:block;font-size:24px;line-height:28px;margin-top:20px}._4250{color:#90949c;display:block;font-size:16px;line-height:20px;margin-top:8px}._4252{height:36px;width:120px}._y1a{display:block;margin-bottom:34px;margin-left:0}._y1c{display:inline-block;height:36px;vertical-align:top;width:36px}._y1g{display:inline-block;margin-left:23px;max-width:391px;text-align:left}._y1h{color:#1d2129;display:block;font-size:16px;font-weight:bold;line-height:20px}._y1j{color:#4b4f56;display:block;font-size:14px;line-height:18px}._y1m{height:36px;width:90px}._82v{height:36px;margin-left:10px;width:70px}._5vvo{margin:auto;margin-bottom:-12px;text-align:center}._47o7{text-align:left}._47o7 li{margin-bottom:8px} ._1gp{cursor:pointer;padding:8px 12px 3px}._1go{border-bottom:1px solid #dddfe2}._1gq{border-left:1px solid #dddfe2;padding-left:12px}._11dw{cursor:pointer;margin-left:8px;margin-top:12px}._11dy{padding-top:2px}._2ncw{margin-top:8px;table-layout:fixed}._2ncv{overflow:hidden;text-overflow:ellipsis} ._ks-{display:inline-block}._58ak.ks{width:100px}._5rpt{width:36px}._5dz6{min-height:488px}._ksy:hover{cursor:pointer}._2263{width:90px} ._32qy{border-radius:50%;overflow:hidden;position:relative}._32qz{left:50%;position:absolute;top:50%}._32q-{left:-50%;margin-top:-50%;padding-bottom:100%;position:relative} ._51xa._5hgz{display:flex;max-width:476px}._3u43{overflow:hidden}._3u42{width:100%}._5hgz ._rfh{overflow:hidden;text-overflow:ellipsis}._5hgz ._3u42 ._rfh{align-items:center;display:flex}._5hgz ._3u42 ._rfh .img{flex-shrink:0} ._2mfs{height:100%;margin:1px 0 0 0;width:100%}._3jm{border:1px solid #dddfe2;box-sizing:border-box;margin-top:-1px;width:100%}._3jm textarea._58an{height:60px}._3jm ._58an::-webkit-input-placeholder{color:#a0b0bb}._1tfo{padding-bottom:8px;padding-top:8px}.4lw{color:#4080ff;font-size:12px}._5rpn{padding-top:1px;width:100%}._4tke{display:table-cell;padding-left:8px;width:100%}._4tjr{display:table-cell}._5rpn label._58ak{border-color:#d3d6db}._b40{border-spacing:0;width:100%}._b3y{padding:0 4px 0 0}._b3z{padding:0;width:150px}._b3-{padding:0 0 0 4px;width:16px}._3jn{font-size:12px;padding-left:8px}._4ul8,._4u1-,._1otd{font-size:12px}._4qx{clear:both}._4o5u{border:1px solid #d3d6db;padding:6px 0 6px 6px}._4o5v{display:inline-block}._20ac{float:right}._4o5s{padding-

so whats this coding mean and how/why did it end up in a folder i created to save my old facebook pictures? there is also tonnes of friends pictures and other things i DID NOT save in that folder... if you neeed me to provide more proof, i will gladly do so.

am i being hacked? is my main concern.. and if so, why?

thanks!!